Written by Julia Forbes, Lead Product Tester
For many people, a king-size mattress represents a dreamy upgrade. These beds offer an abundance of room to stretch out, even if you share your sleeping space with a partner, kids, or pets.
The best king-size mattress for your bedroom will be a reliable source of comfort across its entire surface. Depending on how you sleep, you might look at a wealth of mattresses when upping your bed size to a king. Thankfully, we’re here to help you make the best decision, without even having to get up and go to a mattress store.
Alongside my fellow testers, I’ve collected our top king-size mattresses here for you to browse, in the hopes of finding you a royally perfect match.
Our Pick for the Best King Mattress is…
The Saatva Classic. With three available firmness options and two heights to choose from, this king-size bed is quite customizable. It also has two innerspring units instead of one to ensure long-lasting support, and incredibly strong edges so you can really spread out.
Our Best King-Size Mattress Picks
- Saatva Classic – Editor’s Pick
- Nectar – Best Memory Foam King-Size Mattress
- Helix Midnight – Best King-Size Hybrid Mattress
- DreamCloud Premier – Best King-Size Mattress for Side Sleepers
- Brooklyn Bedding Signature Hybrid – Best Cheap King-Size Mattress
- The WinkBed – Best King-Size Mattress for Back Pain
- Nolah Evolution – Best King-Size Mattress for Couples
- Helix Dawn – Best Firm King-Size Mattress
- Bear Star Hybrid – Best Cooling King-Size Mattress
- Titan Plus – Best King-Size Mattress for Heavy People
Our Video Review of The Best King Mattresses
Compare the Best King Beds of 2024
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| Saatva Mattress | Nectar Mattress | Helix Midnight Mattress | DreamCloud Premier Mattress | Brooklyn Bedding Signature Hybrid Mattress | WinkBed Mattress | Nolah Evolution Hybrid Mattress | Helix Dawn Mattress | Bear Star Hybrid Mattress | Titan Plus | |
| Rating | ||||||||||
| Firmness | Multiple firmness options | Medium-firm: 6.5/10 | Medium-firm: 6/10 | Medium: 5.5/10 | Multiple firmness options | Multiple firmness options | Multiple firmness options | Firm: 7.5/10 | Medium-firm: 6/10 | Firm: 7.5/10 |
| Material | Innerspring | Foam | Hybrid | Hybrid | Hybrid | Hybrid | Hybrid | Hybrid | Hybrid | Hybrid |
| Cooling | — | — | — | — | — | — | ||||
| Warranty | Lifetime warranty | Lifetime warranty | 10-year warranty | Lifetime warranty | 10-year warranty | Lifetime warranty | Lifetime warranty | 10-year warranty | Lifetime warranty | 10-year warranty |
| Shipping | Free white glove delivery | Free shipping | Free shipping | Free shipping | Free shipping | Free shipping | Free shipping | Free shipping | Free shipping | Free shipping |
| Trial Period | 365 nights | 365 nights | 100 nights | 365 nights | 120 nights | 120 nights | 120 nights | 100 nights | 120 nights | 120 nights |
| Best For | Back Sleepers, Stomach Sleepers, Back Pain, Hot Sleepers, Seniors | Back Sleepers, Side Sleepers, Hip Pain, Joint Pain | Couples, Back Sleepers, Side Sleepers | Back Sleepers, Hot Sleepers | Couples, Back Sleepers, Hip Pain | Back Sleepers, Stomach Sleepers, Back Pain, Hot Sleepers, Side Sleepers, Hip Pain, Seniors | Side Sleepers, Back Sleepers, Hip Pain, Seniors | Back Sleepers, Stomach Sleepers, Couples | Joint Pain, Side Sleepers, Back Sleepers, Hot Sleepers | Back Sleepers, Stomach Sleepers, Back Pain, Hip Pain, Seniors |
How We Look for the Best King Size Mattresses
Our diverse team of testers try out every bed we review in the studio. This means hands-on, first-person experience from a variety of sleepers with differing body types, sleeping positions, and overall preferences when it comes to beds. The result is a comprehensive assessment of how the bed feels and performs—not just for us, but for you, dear reader. We summarize our findings in easy-to-understand language, without any of the corporate jargon, to show you the true experience of a mattress.
When it comes to choosing the best king mattresses, we focused on a few categories during our testing and reviews. More on that below.
What We Want to See in the Best King Mattress
During our testing and review process, we noticed that a few things are important to keep in mind when searching for the best king beds:
Good for couples
Chances are, if you’re looking for a king-size mattress, you’re sharing the bed with a partner or pet—or both. We tested beds to see how they perform in categories that are important for couples, such as motion isolation, edge support, and responsiveness.
Value
A king mattress is a big investment, even lower-end options are going to begin at $1,000, at minimum. We made sure these beds all give you the best bang for your buck, so quantity and quality are going hand-in-hand.
10 Top-Rated King Size Mattresses, Reviewed
Saatva Classic – Editor’s Pick
Saatva Mattress
Coil-on-coil structure gives this elevated innerspring bed a luxurious feel and versatility.
Save up to $600 off
Material
Innerspring
Trial Period
365 nights
Shipping Method
Free white glove delivery
Firmness
Multiple firmness options
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Saatva Mattress
Coil-on-coil structure gives this elevated innerspring bed a luxurious feel and versatility.
Material
Innerspring
Warranty
Lifetime warranty
Firmness
Multiple firmness options
Shipping Method
Free white glove delivery
Trial Period
365 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Saatva Mattress
Coil-on-coil structure gives this elevated innerspring bed a luxurious feel and versatility.
Material
Innerspring
Firmness
Multiple firmness options
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free white glove delivery
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Why the Saatva Classic Earned Best King-Size Mattress Overall
One mark of a true king is the power to choose exactly what you want—and the Saatva Classic delivers on this front. You can customize this bed to suit your preferred firmness and height. No matter how plush or tall your king-size mattress ends up being, though, it’ll contain two innerspring units for unflagging support.
What’s the Saatva Classic Made Of?
You can order your Saatva Classic in one of two heights: 11.5 or 14.5 inches. You’ll also be able to choose between Plush Soft, Luxury Firm, and Firm models.
- Euro Pillow Top. Gives the Classic its hotel-quality feel, made of soft foam dressed in an organic cotton cover, with firmer quilting in the middle to lift your lumbar spine.
- Lumbar Crown. Stretches across the middle of the bed beneath the pillow top, further boosting the lumbar region. It leads into the first of two innerspring units.
- First Innerspring Unit. Individually wrapped coils are stronger in the middle, where you’re likely putting the most pressure on the bed.
- Spinal Wire. Stretched amongst the springs also prevents sagging and helps keep your back properly aligned
- Second Innerspring Unit. Consists of interconnected coils that permit lots of airflow and should stand up to years of use.
- Foam Rails. Around the edges of the bed, a frame of high-density foam buttresses the sides and keeps them from dipping too low.
Saatva Classic Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 14.5″ | 5 | 76″ | 80″ |
My Take: Every body type and sleeping position can get what they need from this bed, which is very rare in the mattress landscape.
Customer Reviews of the Saatva Classic
The Classic has garnered more than 3,000 online reviews on Saatva’s website, and sits at 4.8 out of 5 stars. Negative reviews tend to highlight the fact that it can take a bit of time to get your made-to-order bed delivered. But one-star reviews make up about 1% of the review pool, and most customers love the easy delivery process as well as the mattress’s effectiveness at helping with back pain.
Interested in more details? See our complete review of the Saatva Classic or our roundup of the best mattresses for 2024.
Nectar– Best Memory Foam King-Size Mattress
Nectar Mattress
Nectar offers the deeper hug of a traditional memory foam bed but with updated cooling and a Forever warranty.
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nectar Mattress
Nectar offers the deeper hug of a traditional memory foam bed but with updated cooling and a Forever warranty.
Material
Foam
Warranty
Lifetime warranty
Firmness
Medium-firm: 6.5/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nectar Mattress
Nectar offers the deeper hug of a traditional memory foam bed but with updated cooling and a Forever warranty.
Material
Foam
Firmness
Medium-firm: 6.5/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Why the Nectar Earned Best Memory Foam King-Size Mattress
Years after its launch, Nectar’s original memory foam bed remains one of the reigning champions of the online mattress world. Therefore it’s no surprise that we recommend it if you’re looking for an all-foam, king-sized bed.
It’s an affordable option that, despite its lack of springs, finds a rare harmony between softness and support. Its cushiony surface is a special treat for achy joints even as its denser base foam pushes for proper spine alignment.
What’s the Nectar Mattress Made Of?
The Nectar is 12 inches high and has a top and lower cover with three CertiPUR-US® certified foam layers in between.
- Layer 1 – Cover. Features polyethylene fibers that should help prevent overheating.
- Layer 2 – Gel Memory Foam (2 inches). Conforms to your silhouette and cradles sensitive pressure points.
- Layer 3 – Transitional Foam (3 inches). a bit bouncier than the foam above, reducing the risk of a “stuck” feeling as you move around in bed.
- Layer 4 – ActiveSupport Foam (7 inches). Serves as a firm base.
Nectar Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 12″ | 5 | 60″ | 80″ |
My Take: If you’re a side or back sleeper with an average build, the Nectar should be a lovely fit for you. It’s priced more affordably than many other king-sized beds on this list, with awesome policies to match.
Customer Reviews of the Nectar Mattress
With thousands of reviews on Nectar’s website, the Nectar mattress has an average 4.8 out of 5 stars. One common customer complaint about the Nectar mattress is its longer-than-average break-in period, while many customers praise its excellent value and comfort once fully settled.
Want to see more? Visit our Nectar mattress review or our roundup of the Best Mattresses for 2024.
Helix Midnight – Best Hybrid King-Size Mattress
Helix Midnight Mattress
Part of Helix’s core line of mattresses, the Midnight has a hybrid construction that’s particularly suited to back and side sleepers.
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6/10
Warranty
10-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Helix Midnight Mattress
Part of Helix’s core line of mattresses, the Midnight has a hybrid construction that’s particularly suited to back and side sleepers.
Material
Hybrid
Warranty
10-year warranty
Firmness
Medium-firm: 6/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Helix Midnight Mattress
Part of Helix’s core line of mattresses, the Midnight has a hybrid construction that’s particularly suited to back and side sleepers.
Material
Hybrid
Firmness
Medium-firm: 6/10
Trial Period
100 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Why the Helix Midnight Earned Best Hybrid King-Size Mattress
Hybrid mattresses are all the rage these days, bypassing all-foam and traditional innerspring beds in popularity. The combination of cozy foams and responsive coils is tough to beat, and if you’re shopping for a king bed, you’ll want a hybrid that plays to the advantages of this larger size.
The Helix Midnight was built with side sleepers in mind, but it’s a great bed for anyone who wants a high-quality, middle-of-the-road feel. Its medium-firm hybrid construction should lend itself well to a variety of sleepers. My fellow tester Loren said the bed is neither too soft or too firm and asserted “there is definitely a sense of overall support.”
What’s the Helix Midnight Made Of?
The Helix Midnight is 11.5 inches tall and has six layers, including its top cover.
- Layer 1 – Cover. Made of soft, breathable fabric–but can be swapped for a GlacioTex™ Cooling Cover for an additional fee.
- Layer 2 – Memory Plus Foam. Helix’s proprietary material that offers pressure relief and a soothing amount of give.
- Layer 3, 4 – Helix Response Foam. One cradles, and one is more supportive.
- Layer 5 – Coil Unit. pocketed coils that are stronger on the long edges of the bed.
- Layer 6 – Duradense Foam. Everything is backed up by a sturdy base.
Helix Midnight Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 11.5″ | 6 | 76″ | 80″ |
Our Take: “I like how the foams feel soft, but not too soft, like I’m sinking in and getting stuck.” – Emma Mattei, Sleep Advisor Mattress Tester
Customer Reviews of the Helix Midnight Mattress
The Helix Midnight rates 4.5 stars out of 5 on Helix’s website. The main negative is that reviewers tend to find it too soft for their liking and feel as though they’re sinking. But overall, users say they’re getting a great nights’ sleep and some pain relief.
Need more info? Check out our Helix Midnight mattress review or our picks for the best hybrid mattresses.
DreamCloud Premier – Best King-Size Mattress for Side Sleepers
DreamCloud Premier Mattress
The DreamCloud Premier is a great option for those who want a more luxurious sleeping experience.
Material
Hybrid
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium: 5.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
DreamCloud Premier Mattress
The DreamCloud Premier is a great option for those who want a more luxurious sleeping experience.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Medium: 5.5/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
DreamCloud Premier Mattress
The DreamCloud Premier is a great option for those who want a more luxurious sleeping experience.
Material
Hybrid
Firmness
Medium: 5.5/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Why the DreamCloud Premier Earned Best King-Size Mattress for Side Sleepers
The DreamCloud Premier is an extra-luxurious version of one of my favorite mattresses, the DreamCloud. It has some additional padding up top that give it a memorably plush feel, though it doesn’t lose any of the stalwart support from its innerspring unit.
It has a balanced profile to suit side sleepers, who need both pressure relief and spinal alignment. In my opinion, a king-sized version of this bed is bound to make you feel like pampered royalty.
What’s the DreamCloud Premier Made Of?
The DreamCloud Premier is 14 inches high with seven total layers, including its top cover.
- Layer 1 – Cover. Made with a soft cashmere-blend.
- Layer 2 – Quilted Foam. Cushioning gel foam in the Euro top.
- Layer 3 – Quilted Foam. Supportive, firmer foam in the Euro top.
- Layer 4 – Gel Memory Foam. For cooling pressure relief.
- Layer 5 – Transitional Foam. Foam with a slightly firmer feel to assist with spinal alignment.
- Layer 6 – Innerspring Unit. Where pocketed coils allow for cooling airflow and the springs are reinforced along the edges.
- Layer 7 – Base Layer. Stable foam forms the bottom layer of the bed.
- Layer 8 – Bottom Cover. All of the inner layers are contained within a lower cover, which also features handles for intuitive transport.
DreamCloud Premier Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 14″ | 6 | 76″ | 80″ |
My Take: Let’s talk about pressure relief: The memory foam and soft foam at the mattress surface really cradle the body’s key areas.
Customer Reviews of the DreamCloud Premier
Coming in at 4.5 out of 5 stars on DreamCloud’s site, the DreamCloud Premier receives a majority of positive reviews. Customers praise the DreamCloud Premier mattress for its luxury feel, but some have noted that it may not be the best choice for those on a tighter budget.
Want to read more? Visit our full DreamCloud Premier review or our roundup of the best mattresses for side sleepers.
Brooklyn Bedding Signature Hybrid – Best Cheap King-Size Mattress
Brooklyn Bedding Signature Hybrid Mattress
The Brooklyn Bedding Signature Hybrid is priced similarly to other bed-in-the-box options, it represents a fantastic value in the hybrid market.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Multiple firmness options
Warranty
10-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for average weight back sleepers.Financing Options
Financing options are available for this mattress.
Brooklyn Bedding Signature Hybrid Mattress
The Brooklyn Bedding Signature Hybrid is priced similarly to other bed-in-the-box options, it represents a fantastic value in the hybrid market.
Material
Hybrid
Warranty
10-year warranty
Firmness
Multiple firmness options
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for average weight back sleepers.Financing Options
Financing options are available for this mattress.
Brooklyn Bedding Signature Hybrid Mattress
The Brooklyn Bedding Signature Hybrid is priced similarly to other bed-in-the-box options, it represents a fantastic value in the hybrid market.
Material
Hybrid
Firmness
Multiple firmness options
Trial Period
120 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for average weight back sleepers.Financing Options
Financing options are available for this mattress.
Why the Brooklyn Bedding Signature Hybrid Earned Best Cheap King-Size Mattress
As my fellow tester Emma remarked, “the Signature Hybrid mattress is where affordability meets quality.” This king-sized bed can be had for hundreds less than $2,000, making it one of the most affordable king-size mattresses on this list. Our team typifies it as an eminently sensible (if not overly fancy) option.
What’s the Brooklyn Bedding Signature Hybrid Made Of?
The Brooklyn Bedding Signature Hybrid is 11.5 inches tall with five inner layers underneath its cover. You can order it in a Soft, Medium, or Firm feel—the firmness you choose will determine how thick each layer is.
- Layer 1 – Quilted Top. Allows for some cushion while also preventing long-term sagging or body impressions.
- Layer 2 – Comfort Foam. Designed for both pressure-relief and springy responsiveness.
- Layer 3 – VariFlex™ Foam. Adds support and transitions into the bed’s innerspring unit.
- Layer 4 – Innerspring Unit. Coils flex individually in fabric pockets, and reinforced springs along the sides help the edges stay strong.
- Layer 5 – Foam Base. High-density foam acts as a long-lasting foundation.
Signature Hybrid Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 11.5″ | 5 | 76″ | 80″ |
Our Take: “This has all the luxury features that you’re looking for in a hybrid mattress … nice pressure-relieving foams on top, supported by the coils beneath. It doesn’t sacrifice support or pressure relief.” – Mark, Sleep Advisor Mattress Tester
Customer Reviews of the Brooklyn Bedding Signature Hybrid
On Brooklyn Bedding’s website, the Signature Hybrid has 4.7 out of 5 stars. This mattress receives praise from customers for its versatility with different firmness options, but some have mentioned that it may produce slight noise when bearing weight.
Interested in this bed? Read our full Brooklyn Bedding Signature Hybrid mattress review, or browse our top picks for the best cheap mattresses.
The WinkBed – Best King-Size Mattress for Back Pain
WinkBed Mattress
WinkBed is a luxury hybrid bed with a variety of comfort features that should make it a versatile pick for most sleeping positions.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Multiple firmness options
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
WinkBed Mattress
WinkBed is a luxury hybrid bed with a variety of comfort features that should make it a versatile pick for most sleeping positions.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Multiple firmness options
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
WinkBed Mattress
WinkBed is a luxury hybrid bed with a variety of comfort features that should make it a versatile pick for most sleeping positions.
Material
Hybrid
Firmness
Multiple firmness options
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Stomach Sleeping
Ideal for average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Why the WinkBed Earned Best King-Size Mattress for Back Pain
If you’re looking for a king-size bed that can help relieve back pain, I’d like to nominate the WinkBed. It has more back-friendly features than most other beds I’ve reviewed, including zoned coils and a specialized foam “LumbarLayer™” that both lend the low back some enhanced support.
What’s more, it’s a mattress with handcrafted touches and an especially durable innerspring unit beneath its softer foams. Testers Sean and Mark both loved how customizable it is, and also complimented its superior craftsmanship.
What’s the WinkBed Made Of?
The WinkBed has four firmness options you can choose from: Softer, Luxury Firm, Firmer, and Plus, the last of which is designed for heavier sleepers. Regardless of the feel you pick, it’ll stand around 13.5 inches tall.
- Cover. A Tencel™ cover with breathable fabric made from Eucalyptus wood pulp.
- Euro Pillow Top. Plush foam for cushioning and pressure relief.
- Comfort and Support Layers. Additional foam layers—including a LumbarLayer™ that support the lower back—eventually lead into the innerspring unit.
- Coils. Split into zones that offer increased pressure relief or pushback, depending on where they’re located. Reinforced along the edges to maximize your usable sleep space.
The WinkBed Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 13.5″ | 4 | 76″ | 80″ |
Our Take: “I’ve had the opportunity to try out the WinkBed mattress a number of times … I really like that these are handmade, that they’re tufted, and that you lay down on it and you can really feel that pressure relief.” – Mark Mattei, Sleep Advisor Mattress Tester
Customer Reviews of the WinkBed
On the WinkBeds site, the WinkBed earns a 4.8 out of 5 stars. One drawback of the WinkBed mattress is that it might be too expensive for budget-conscious shoppers, but overall it offers excellent durability and customizable firmness options.
Looking for more info? See our full WinkBed mattress review or our roundup of the best mattresses for back pain.
Nolah Evolution – Best King-Size Mattress for Couples
Nolah Evolution Hybrid Mattress
Nolah’s innovative pressure-relieving abilities should be an excellent fit for side-sleepers, and if you struggle with overheating, the AirFoamICE™ technology should keep you cool all night long.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Multiple firmness options
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nolah Evolution Hybrid Mattress
Nolah’s innovative pressure-relieving abilities should be an excellent fit for side-sleepers, and if you struggle with overheating, the AirFoamICE™ technology should keep you cool all night long.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Multiple firmness options
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Nolah Evolution Hybrid Mattress
Nolah’s innovative pressure-relieving abilities should be an excellent fit for side-sleepers, and if you struggle with overheating, the AirFoamICE™ technology should keep you cool all night long.
Material
Hybrid
Firmness
Multiple firmness options
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.Financing Options
Financing options are available for this mattress.
Why the Nolah Evolution Earned Best King-Size Mattress for Couples
At 15 inches tall, a king-size Nolah Evolution cuts a striking figure in any bedroom. Its opulent construction includes seven total layers, plus an upper gusset that encourages heat to leave the mattress. With all of that material, it’s no surprise that it stands up well to the challenges of partnered sleeping.
“This is an excellent mattress for couples,” said our tester Stuart. “You could build your house on Nolah’s edge support.” Another one of our reviewers, Liz, added that these sturdy edges made getting in and out of bed a breeze, even though the mattress is so tall. Stuart also complimented the Evolution’s motion isolation, which should prove advantageous to light sleepers who snooze alongside a loved one.
What’s the Nolah Evolution Made Of?
Listing the materials inside the Nolah Evolution is no easy feat, as this mattress has seven layers (including its top cover) and is 15 inches thick. You can order this mattress in one of three firmness levels: Plush, Luxury Firm, or Firm.
- Layer 1 – Cover. An organic cotton cover with heat-transferring fibers.
- Layer 2 – Pillow Top. A Euro topper quilted with breathable foam and encased by a gusset that further dispels unwanted warmth.
- Layer 3 – AirFoamICE™. Graphite-infused foam reputedly beats memory foam with its capacity for pressure relief, cooling, and standing up to wear and tear.
- Layer 4 – High-Resilience Foam. A firmer foam that supports the softer layer above.
- Layer 5 – Transition Foam. Adds some bounce and responsiveness to the mix.
- Layer 6 – Coil Unit. three regions that provide specialized amounts of pushback to different parts of the body. Thicker coils around the bed’s perimeter lend the mattress its memorable edge support.
- Layer 7 – Base Layer. A robust foundation made from recycled plant fiber.
Nolah Evolution Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 15″ | 7 | 76″ | 80″ |
Our Take: “[The Nolah Evolution] also has great motion isolation, so you shouldn’t have to crawl around like you’re stuck in slow-motion so you don’t wake up your partner.” – Stuart Petty, Sleep Advisor Mattress Tester
Customer Reviews of the Nolah Evolution
The Nolah Evolution has netted an average of 4.9 out of 5 stars on Nolah’s website across hundreds of customer reviews. Buyers seem to value the brand’s dedicated customer service and the pressure-relieving feel of the bed, though some say it doesn’t run quite as cool as they’d hoped.
Interested in exploring further? Read our full Nolah Evolution mattress overview or our roundup of the best beds for couples.
Helix Dawn – Best Firm King-Size Mattress
Helix Dawn Mattress
This hybrid mattress was specifically designed for those who love a firm but contouring mattress.
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
10-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Dawn Mattress
This hybrid mattress was specifically designed for those who love a firm but contouring mattress.
Material
Hybrid
Warranty
10-year warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Helix Dawn Mattress
This hybrid mattress was specifically designed for those who love a firm but contouring mattress.
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
100 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.Financing Options
Financing options are available for this mattress.
Why the Helix Dawn Earned Best Firm King-Size Mattress
The spring unit and the proprietary foams in the Helix Dawn give it a firmer feel that’s perfect for people who prefer minimal sinkage. Instead of classic memory foam, this king-size bed features Helix Dynamic Foam—a material that emulates the airy feel of latex—as its first foam layer. Back and stomach sleepers should appreciate the even, stable support that it offers.
What’s the Helix Dawn Made Of?
The Helix Dawn is 11.5 inches tall and has five total layers.
- Layer 1 – Cover. Standardly comes with a soft cover, but for an extra fee you can exchange it for a GlacioTex™ Cooling Cover with fibers that help redirect excess heat.
- Layer 2 – Helix Dynamic Foam. Emulates the responsive feel of latex.
- Layer 3 – Helix Responsive Foam. Cradles pressure points.
- Layer 4 – Transitional Foam. Another layer of Helix responsive foam for a firmer feel.
- Layer 5 – Innerspring Unit. Individually wrapped springs that have been reinforced along its long edges.
- Layer 6 – DuraDense Foam. A sturdy foundational layer.
Helix Dawn Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 11.5″ | 5 | 60″ | 80″ |
Our Take: The Dawn balances comfort with palpable support. Our reviewers felt that they were resting “on top of” rather than “inside” the mattress.
Customer Reviews of the Helix Dawn Mattress
The Helix Dawn has an average of 4.4 out of 5 stars on the Helix website. Negative reviews say that the mattress seems to get softer over time, but the majority positive reviews claim the bed is comfortable and has helped with aches and pains.
Want a closer look? Consult our in-depth Helix Dawn review or our roundup of the best firm mattresses.
Bear Star Hybrid – Best Cooling King-Size Mattress
Bear Star Hybrid Mattress
The Bear Hybrid is an appealing product because it should cater to a wide variety of sleepers.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Bear Star Hybrid Mattress
The Bear Hybrid is an appealing product because it should cater to a wide variety of sleepers.
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Medium-firm: 6/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Bear Star Hybrid Mattress
The Bear Hybrid is an appealing product because it should cater to a wide variety of sleepers.
Material
Hybrid
Firmness
Medium-firm: 6/10
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.Financing Options
Financing options are available for this mattress.
Why the Bear Star Hybrid Earned Best Cooling King-Size Mattress
The Bear Star Hybrid is often marketed to athletes, but its cooling components don’t discriminate—they should help anyone who tends to sleep hot. At the top of this king-size bed is a cover that boasts temperature-regulating HydroCool® technology, as well as Celliant® fibers that allegedly transform body heat into infrared energy.
In the body of the mattress, cooling foams and individually wrapped coils also help to prevent overheating.
What’s the Bear Star Hybrid Made Of?
The Bear Star Hybrid is a 13-inch mattress equipped with five layers.
- Layer 1 – Cover. Combines HydroCool® technology for temperature regulation, and Celliant® fibers that may speed up muscle recovery after strenuous activity.
- Layer 2 – Serene Gel Foam. Provides plushness and temperature regulation.
- Layer 3 – Comfort Foam. Adapts to different body types and sleep positions—a benefit for couples sharing a king-size bed. Also serves as a transitional unit between the upper portion of the mattress and the coils below.
- Layer 4 – Coil Unit. Ensures your spine remains well-aligned throughout the night, and stronger coils along the perimeter reinforce the edges of the bed.
- Layer 5 – Base. A highly-dense foam for added durability.
Bear Star Hybrid Mattress Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 13″ | 5 | 76″ | 80″ |
Our Take: This hybrid has some signature features—most notably its Celliant® cover—that add up to a unique package. Its medium-firm feel should accommodate most couples, even if they have different sleeping preferences, so we dig it as a modern and cool king-size mattress.
Customer Reviews of the Bear Star Hybrid
Coming in at approximately 4.5 out of 5 stars on Bear’s site, the Bear Star Hybrid has generally positive reviews. Customers praise the Bear Star Hybrid mattress for its excellent cooling properties, however some have found it to be on the firmer side, which might not be suitable for those seeking a softer feel.
Want more details? Read our full Bear Star Hybrid review or our roundup of the best cooling mattresses.
Titan Plus – Best King-Size Mattress for Heavy People
Titan Plus
This specially-designed hybrid is made for heavier sleepers to help them get better, more comfortable sleep.
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
10-year warranty
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Titan Plus
This specially-designed hybrid is made for heavier sleepers to help them get better, more comfortable sleep.
Material
Hybrid
Warranty
10-year warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Titan Plus
This specially-designed hybrid is made for heavier sleepers to help them get better, more comfortable sleep.
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
120 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
We recommend this mattress for the following sleeper types:
Seniors
This bed is perfect for senior sleepers.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.Financing Options
Financing options are available for this mattress.
Why the Titan Plus Earned Best King-Size Mattress for Heavy People
If you’re a bigger person looking for a king-size mattress, the Titan Plus has you covered! This bed was designed to accommodate plus-size folks who often find themselves dissatisfied with the support other beds offer. Support is where the Titan Plus prevails, thanks to its industrial coil unit that should have you feeling lifted and aligned on the mattress surface.
Strong edges also ensure you can make full use of the king’s surface area, a gift for couples or anyone who just likes to spread out on their bed.
What’s the Titan Plus Made Of?
The Titan Plus is 11 inches tall. It has 4 internal layers. It can accommodate up to 1,000 pounds.
- Layer 1 – Gel Memory Foam (1 inch). This cooling foam layer shouldn’t sag even as you sink into it.
- Layer 2 – TitanFlex™ Foam (2 inches). A responsive layer of foam molds to your body while it relieves pressure buildup in sensitive areas.
- Layer 3 – Coils (6 inches). Sturdy, individually wrapped coils make up the support unit. There are more coils along the edges for added reinforcement.
- Layer 4 – High-Density Foam Base (2 inches). The dense, firm foam foundation of the bed.
Titan Plus Dimensions
| Height | Number of Layers | Product Width | Product Length |
| 11″ | 4 | 76″ | 80″ |
Our Take: “Bottom line: for all plus-size sleepers, there should be plenty of support and pressure relief regardless of your sleeping position.” – Spencer, Sleep Advisor Mattress Tester
Customer Reviews of the Titan Plus
Users on Titan by Brooklyn Bedding’s site have given the Titan Plus a 4.7 out of 5 stars. There are over 2,500 reviews where most customers find the Titan Plus mattress to offer exceptional durability and support, but some mention that it might be too firm for those who prefer a softer feel.
Want to learn more? Check out our full Titan Plus review or our roundup of the best mattresses for heavy people.
Other King Sized Beds We Tested
While these mattresses didn’t make our list, each of these beds are great fits for shoppers looking for a larger, king-sized mattress. Check out our featured recommendations below.
Product
Firmness
Trial Period
Product
Awara MattressFirmness
Medium-firm: 6/10Trial Period
365 nights
Product
Puffy Lux MattressFirmness
Soft: 4.5/10Trial Period
101 nights
Product
Amerisleep AS2 MattressFirmness
Medium-firm: 6.5/10Trial Period
100 nights
Product
TEMPUR-ProAdapt MattressFirmness
Multiple firmness optionsTrial Period
90 nightsWhat is a King-Size Mattress?
A standard King-size mattress is 76 inches wide and 80 inches long. These dimensions make king beds a full 16 inches wider than Queen beds — they give you more than a foot of added lateral space.
Although these are the typical dimensions of a King-size mattress, there are nuances when it comes to the type of King bed you buy.
Types of King Beds
| Type of Mattress | Dimensions (inches) |
| Standard King | 76″ x 80″ |
| California King | 72″ x 84″ |
| Wyoming King | 84″ x 84″ |
| Texas King | 80″ x 98″ |
| Alaskan King | 108″ x 108″ |
| Split King | 30″ x 80″ and 30″ x 80″ |
Standard King
A standard King-size mattress measures 76 inches wide and 80 inches long. You may also hear it referred to as an Eastern King. This is the most common incarnation of a King-size bed.
California King
A California King mattress is slightly narrower and longer than a standard King, measuring 72 inches wide and 84 inches long. It’s also known as a Western king, Cali king, or Cal king.
What’s the Difference Between a King and a California King?
A standard King-size mattress is wider than a Californa King, whereas a California King is slightly longer.
So, why you might buy a California King over a King? Certain sleepers — especially tall ones — appreciate the extra length. Its dimensions may also work better with your bedroom setup. The King vs. California King debate is long and storied, with good arguments on either side.
Split King
A Split King mattress is exactly what it sounds like: a King-size bed, split down the middle into two separate sides.
Split Kings are ideal for couples who want to sleep beside one another but have notably different preferences in terms of comfort. For example, maybe you like a soft mattress, but your partner prefers an extremely firm bed. With a split king, you wouldn’t need to compromise.
Often, a split king will be two Twin XL mattresses lined up side by side. This setup works well with a split adjustable base — sleepers not only get the feel they want from their bed, but they can also manipulate the position of each mattress independently. You can also find some Split California Kings, though they’re a bit tougher to find than standard Split Kings.
Other King-Size Mattresses
There are a few more specialized king mattresses that are a bit rarer than the ones we mentioned above, and quite a lot bigger.
The Wyoming King is a square mattress that measures 84 inches by 84 inches, a whopping 7 feet by 7 feet. A Texas King mattress is a rectangle, and it measures 80 inches by 90 inches. It’s essentially 6.5 feet by 8 feet. And finally, the gargantuan of king-size mattresses, the Alaskan King, is 108 inches by 108 inches. That’s a 9 foot by 9 foot square!
These mattresses are harder to find, and naturally much more expensive. But some folks may want the extra space and luxury.
What to Consider in a King-Size Mattress
As the name suggests, King mattresses are large, and they will take up a good bit of space. Therefore, you will want to make sure that your bedroom can accommodate it and any other furniture that you may want to add.
Once you have established that you have a room that can house this substantial piece of furniture, you will want to decide what type of King bed you want. Although there are now a host of super-sized Kings, such as the Texas King and the Alaska King, we are going to concentrate on three of the most popular: King, California King, and Split King.
After you have that narrowed down, you’ll want to consider other important preference-based features.
Type of Mattress
Innerspring Mattresses
Traditional innerspring mattresses can use an interconnected coil system, though more recently, many bed-in-a-box brands now use a pocket coil that keeps the bounce while isolating motion.
Innerspring beds can offer great support, bounce, airflow, and affordability. However, they’re not as great for pressure because they don’t have substantial comfort layers.
Hybrid Mattresses
Hybrid mattresses are a mashup of foam and coils. With upper layers made of foam or latex, sleepers can receive contouring pressure relief, and the durable base layer of coils can allow for better support and easier repositioning.
The coils also provide airflow, which helps keep the mattress cool. Many hybrid bed manufacturers also use gel-infused foam, aeration, and other cooling technologies to provide additional temperature-regulating properties. The construction and materials used in hybrid mattresses can often make them more expensive than other models.
Memory Foam Mattresses
There are a lot of different types of memory foam mattresses out there. Often, these beds have memory foam at the top with firmer poly foam toward the bottom.
Memory foam mattresses can be excellent for pressure relief, support, and motion isolation. They are also a more affordable option. While memory foam has a reputation for trapping heat, many manufacturers now add cooling features to help offset this.
Latex Mattresses
Latex mattresses are made out of latex, which is a type of rubber foam. There are typically two types – Talalay and Dunlop latex. These differ in construction but have a very similar feel and quick responsiveness, gently contouring to sleepers’ bodies and cradling their curves.
Latex is temperature-neutral, durable, and great for pressure relief. In the case of naturally-made latex, it’s also eco-friendly. The main downside to latex, though, is its high price point.
Bedroom Size
A king mattress is a lasting investment but it also takes up quite a bit of space. Since king beds measure (on average) 76 inches by 80 inches, you want to make sure that a royal-sized mattress can fit in your room. Even if it can fit, you might still want to reserve square footage for other furniture, like a bureau or desk.
A good alternative to save space is a queen, which is only a foot or so smaller, and still perfect for couples. Some single folks may even be able to get away with a full-size mattress.
Budget
King beds are one of the largest and most expensive mattresses on the market. Therefore, if you are shopping on a budget you may want to consider smaller sizes. However, if you are set on a King-size mattress, there are more affordable options that can still provide you with a high-quality product. Shopping online can also help you save money on a King-size bed by purchasing directly from the manufacturer.
Trials
Trial periods are helpful when purchasing a new king-size mattress as they can eliminate many of the “what-if”s while providing an “out” if it doesn’t pan out. Most online mattress companies offer a minimum trial period of 100 nights, as that should be enough to “break in” a new bed and see if it works for you. (Some companies might be more generous and offer year-long trials.) During this timeframe, if something doesn’t check out, you can return the bed (usually for free) for a refund or an exchange. This is useful if it’s a small correction you need: like a size or firmness discrepancy.
Returns
Some folks prefer to try before they buy—and when they can’t, they want the option of a free return. Most online mattress brands offer free returns, but some will have you pay a shipping or removal fee (typically around $99) in order to return the bed. If you’re not sure you’ll be completely sold on your king bed, make sure to check the company’s return policy.
Warranties
Warranties refer to the guarantee offered by a mattress manufacturer to either refund or replace parts or the entirety of your mattress in the event of any defects. A warranty is a great way to determine how long a king mattress should last, but it can also provide an extra layer of protection if anything goes wrong.
Ten to 15 years is the average lifespan of a mattress, and it’s also a common warranty length. Some brands are more generous and offer lifetime warranties. If you want a lasting mattress, it’s important to understand the manufacturer’s warranty to get your money’s worth.
How We Test King Size Mattresses
Sleeping Position
How you sleep can influence what will work best for you in a mattress, alongside how a bed feels to you. There are three main sleeping positions: side, back, and stomach—and some folks even rotate through a few, called combination sleepers.
We test mattresses in each of these positions and in a variety of body types, ensuring we get an accurate reading for how a bed will perform. Here’s what we look for when it comes to each sleeping position:
Side sleepers typically like a soft bed that can relieve pressure from their hips and shoulders, as these areas put more pressure into a bed over a smaller surface area.
Back sleepers, on the other hand, usually enjoy something that can help distribute their weight evenly over the surface of the bed. A medium feel often works for these folks as this will fill in the gap between their hips and shoulders without throwing off their alignment.
Stomach sleepers often drift towards a firmer bed. These types of mattresses keep their hips elevated and level with their shoulders. An overly soft bed could cause their hips to dip too low into the mattress.
Combination sleepers need a bed that targets at least several sleeping positions, usually, something with a medium feel and more responsiveness to help them move around.
For more information, see our article on the Best Sleeping Positions.
Weight/Body Type of Sleepers
The dimensions of a King-size bed should work for most body types, but you’ll also need to take your weight and how it will interact with the materials, firmness, and other features into consideration. Many people sleep comfortably on a bed with a medium firmness, but those who are on the lighter side are often more comfortable on softer mattresses as this helps pressure from building up. Meanwhile, heavyweight sleepers will require something with additional support and firmness to help keep their spines aligned.
How do we test body type?
We have testers representing each body type test our mattresses: lightweight (under 130 lbs), average weight (between 130 lbs and 230 lbs), and heavyweight (over 230 lbs). This way, we can get an accurate feel of the mattress for each.
Firmness
The firmness of your mattress is going to affect how you sleep. Something overly soft can leave you feeling stuck in bed, while something too firm can feel like concrete.
Beds are usually categorized as Soft, Medium, or Firm, with some variance in between. Certain brands may use different firmness titles, so reach out if you are unsure. For more info, check out our complete mattress firmness guide.
How do we test firmness?
For firmness, we consider what a mattress company has claimed their bed to feel like, and compare it to our own findings. We see how the bed’s support and pressure relief affects how firm or soft it feels, then we give it a rating from 1 to 10—1 being soft as a cloud and 10 being hard as a rock.
Cooling
The size of a mattress doesn’t necessarily affect its ability to keep you cool, but before making a major purchase like a King-size bed, you will want to consider its temperature-regulating capabilities. This is because staying cool throughout the night is one of the most important factors when it comes to getting restful and restorative sleep.
Memory foam is a popular choice for many consumers because of how it cradles your body, but it has a tendency to sleep hot. Fortunately, many manufacturers have taken note of this issue by infusing gel into the foam. Latex is a cooling material and it can be a good choice when it comes to drawing heat away from your body. Additionally, innerspring and hybrid mattresses’ coil units allow air to flow freely.
How do we test cooling?
We use a temperature gun to figure out a bed’s cooling capability. First, we’ll take the surface temperature of the mattress (which is usually at most 74 degrees Fahrenheit in our studio). Then, a tester lies on the bed for five minutes, and we take the temperature again. After another five minutes, we take the temperature to see how much it has changed (if at all). Usually, a bed that maintains temperature within five degrees is a sign that it can keep cool.
Motion Isolation
Co-sleepers have to not only be concerned about their sleeping preferences but also the movements of their partners. If the nocturnal movements of your spouse, child, or pet are transferred from their sleeping area to yours, it can disturb your sleep.
King-size beds should give you plenty of room to move around, but if your bed doesn’t isolate motion well, the size won’t matter as much. Memory foam and hybrid mattresses both do well at keeping motion from one side of the bed to the other.
How do we test motion isolation?
We use a seismograph app to record movement across the mattress surface. The graphs look like a line with a lot of waves; smaller waves or straight lines mean little to no disturbance, while bigger waves mean bigger, more noticeable movement. We’ll also lie side by side to corroborate our findings.
Pictured above is the seismograph from the Nolah Evolution’s motion isolation test.
Sex
Sexually active people will have an expanse of real estate to utilize during their intimate moments when sleeping on a King-size bed. However, to make the most out of your space, you will want to consider how the mattress’s materials will support your endeavors.
Traditional innerspring mattresses are durable and provide great bounce. However, they may not provide enough cushioning, and they can be noisy. Latex is an excellent choice for sexually active folks as it is extremely responsive and allows for ease of movement, but these beds can be expensive. Hybrids are also helpful for this.
How do we test for sex?
Since a bouncy bed is better for sex, we’ll test out a bed’s responsiveness to determine if it’s good for sex. We bounce both a lacrosse ball and a weighted medicine ball on the bed to see how quickly the surface bounces back. Of course, we also jump on the bed ourselves!
Pressure Relief
Beds that make the aches and pains of the day melt away can bring restorative sleep. That is why pressure relief is important to consider when purchasing your King-size bed.
The contouring yet supportive nature of memory foam and latex offers incredible pressure relief because the foam cradles around your body and keeps pressure from building up. However, if you’re a fan of the durability of innerspring mattresses, you may want to consider a hybrid model. Hybrids provide more cushioning between you and the metal coils than traditional innerspring beds.
How do we test for pressure relief?
We do a pressure map test for each bed we try. This map is color coded to show in what areas of the body there’s increased pressure buildup: blue and green means less pressure, while red and yellow means more pressure. We have testers of each body type lie on their back and side to get an accurate reading for each position.
Edge Support
How well-supported you are around the perimeter of your bed may not be a major consideration when choosing your new King-size mattress. However, even in a large bed, good edge support is beneficial, particularly to co-sleepers and those with mobility issues.
Co-sleepers will be able to use the entire bed without feeling that they are falling out of it. Reinforced edges can give those with mobility issues a solid base to get in and out of bed. Memory foam and latex mattresses can be designed with sturdier foams around the edges, whereas innerspring and hybrid beds typically have exemplary edge support by extending their coils or putting stronger ones around the outside of the bed.
How do we test edge support?
We test out edge support in two positions: one of our testers sits on the edge and ties their shoes, then they lie on the edge for about a minute. Then, they’ll record how much sinking or slipping they feel or see.
Durability
All mattresses have a lifespan, and it can be annoying to deal with a mattress that starts sagging long before its warranty is up. If you want a durable king mattress, you’re going to need to find a bed that’s made of high quality, durable materials. We generally recommend beds with coils over those with foam, since foam can sag more egregiously.
Related: Best Mattress That Won’t Sag
How do we test durability?
During testing, we take into account what we’ve learned from observing the bed’s performance, its construction, and the quality to form an opinion about how long it’ll last. Most mattresses have a lifespan of about 10 years, and if we think that a bed is built to last longer than that, we’ll let you know.
Should I Buy a King or Queen Size Mattress?
Some shoppers may struggle between choosing a king or queen mattress, as the price difference (depending on the brand) can be anywhere from a couple hundred bucks to a thousand dollars.
There are generally two things to consider if you’re waffling between a king- and queen-size bed, the first is space, and the second is price.
When we say space, we mean both the mattress space and the space you have in your room. If you have a smaller bedroom, a queen bed may give you more square footage to fill with other furniture. If you have a partner, you’ll still have room on a queen mattress, but it’ll be snugger than a king. And if you’re a single person, a queen-size mattress may feel too empty.
For price, sometimes a queen can save you up to one thousand dollars, depending on which bed you’re buying. If price is important to you, you may want to size down to a queen, but if you have the extra cash, splurging on a king can give you a truly royal sleep experience.
Who Should Buy a King Mattress?
- Couples. The best part about a king mattress is the amount of space you’re getting. Couples who want to have their own sides of the bed may prefer the added inches a king offers.
- Pet owners. In the same vein, folks who allow their pets into the bed may want the extra space to ensure everyone’s comfortable and there’s no squishing.
- People with large bedrooms. One drawback of a king-size bed is that it can take up a lot of space. If you have a fairly big bedroom, though, a king might be the perfect fit. Sometimes, a queen or full can look too small in larger rooms.
- Shoppers looking for a long-term bed. Since a king bed is an investment, it’s important to consider if this is going to be the mattress that stays with you for a long time. For example, if you plan on moving soon, a king sized mattress may be difficult to transport or fit into your new home.
| Mattress | Best For | Price (Queen Size) | Review |
| Saatva Classic | Editor’s Pick | $1,995 | Saatva Classic Mattress Review |
| Nectar | Memory Foam | $999 | Nectar Mattress Review |
| Helix Midnight | Hybrid | $1,199 | Helix Midnight Mattress Review |
| DreamCloud Premier | Soft | $1,832 | DreamCloud Premier Mattress Review |
| Brooklyn Bedding Signature Hybrid | Cheap | $1,249 | Brooklyn Bedding Signature Hybrid Mattress Review |
| The WinkBed | Back Pain | $1,799 | Winkbed Mattress Review |
| Nolah Evolution | Couples | $2,299 | Nolah Evolution Mattress Review |
| Helix Dawn | Firm | $1,199 | Helix Dawn Mattress Review |
| Bear Star Hybrid | Cooling | $1,998 | Bear Star Hybrid Mattress Review |
| Titan Plus | Heavy People | $1,249 | Titan Plus Mattress Review |
King-Size Mattress FAQs
How big is a King-size mattress?
A standard King-size mattress is 76 inches in width by 80 inches in length. This means that while many people should fit comfortably on this bed, those who are over 6 feet tall may want to ensure that this bed will give them enough room to stretch out if they choose. California King-size beds provide 4 more inches in length, but their width is 4 inches shorter.
How much does a King-size bed cost?
When purchasing a King-size mattress, you can expect to pay at least around 1,500 to 2,000 dollars for a quality product. That said, there’s a lot of variability in price depending on what you’re looking for in your bed.
When considering the cost of a King-size mattress, you’ll want to weigh your budget against what features are most important to you. Certain luxury models can cost more than 5,000 dollars Hybrids and latex beds also tend to be more expensive than foam and innerspring beds.
Are there any cheap King-size beds?
King-size mattresses are typically more expensive, so a less expensive model could present huge savings. There are cheaper models out there, but be careful that you are not confusing “cheap” with “affordable.” So you can get the most out of your money, research different brands and materials. That way, you’re sure to find the best budget mattress.
Is a King-size mattress worth the money?
Yes and no; some beds are going to be far more expensive than other brands that sell similar or identical beds. Again, this is where it is important to compare brands to make sure you are getting a fair deal. There are plenty of good King-size mattresses out there that are worth the price tag.
Should I use a King-size mattress topper?
If you are buying a new bed, you may as well buy it right the first time and get what you are looking for in a mattress and not spend additional money on a topper. If you currently have a King mattress and think it needs just a slight adjustment, a quality mattress topper could be a good way to get the feel you want.
Is a King-size mattress better than a Queen-size mattress?
The answer to this question depends on your unique circumstances. A queen mattress is big enough to fit two people comfortably, or for one person to spread out. A king is a bit bigger (about a foot of extra square footage) and can allow for extra space for couples who might need it, such as those of a larger size or weight. Both have their pros and cons, but it ultimately comes down to what you’re looking for, alongside your available budget and space.
Julia Forbes
Lead Product Tester
About Author
Julia is the Lead Reviewer at Sleep Advisor, specializing in testing out mattresses and sleep accessories – she’s in the right line of work, because she loves to sleep.
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