Best King-Size Mattress (2025)

The Helix Midnight mattress is one of the brand’s most popular: a hybrid mattress with a medium-firm feel, offering both support and softness. The Midnight stands out as our favorite king-size mattress because of its all-around quality in the sleep lab. For starters, we gave this bed a 4/5 on our durability test—a sign of a sturdy, well-constructed hybrid mattress. 

We also gave it a 4/5 for support. My fellow tester Elisa Regulski enjoyed the bed on her back and side especially. She also noted the bed’s responsive (4/5) surface, “it was really easy to switch sleeping positions because of the bouncy coils.” This bounce didn’t dampen the bed’s ability to isolate motion (4.5/5), though, as during our tests, I wasn’t disrupted by my teammate’s movements. This means the Helix Midnight should be a great bed for couples, especially if one of you happens to be a light sleeper.

I also only noticed about 2” of sagging when I sat down on the Helix Midnight’s edge, which earned it its 4/5 edge support. Lying down, I was pretty secure too. On a king Midnight mattress, you’re going to be able to make full use of the surface area. And that surface should feel pretty cool too; it only went up about 3 degrees after lying on the mattress for five minutes, the reason for its high score (4.5/5).

You might have noticed the Helix Midnight earned a minimum 4/5 in every performance category. This means it’s a pretty well-rounded mattress. However, there’s still some folks I’d recommend look elsewhere. Stomach sleepers or those of a heavier weight, you guys might want to find something firmer. (I’d recommend checking out Helix Dawn or Helix Plus mattresses for both these groups.)

Read our full Helix midnight mattress review for more information.

All-foam beds are popular choices for their cushioning, and getting one in king-size should only elevate the experience. Enter the Nectar, the brand’s classic memory foam mattress. This bed doesn’t have the typical slow-moving feel of most foam beds, but rather a more balanced one. Its high support (4/5), motion isolation (4.5/5), and edge support (4.5/5) scores should appeal to most king-size mattress shoppers.

My fellow reviewer Elisa loved this bed on her back: “The comfort layer cushioned my lower back, and the base layer kept my spine in a neutral alignment.” She didn’t enjoy it on her side, though, because of the pressure buildup in her shoulders. This is because despite being a foam mattress, the Nectar prioritizes support over pressure relief, so some side sleepers may have trouble sinking comfortably into the surface. But as a heavyweight sleeper myself (270 lbs), I wouldn’t consider this bed firm enough to support this category either. I liked the Nectar sleeping on my back best, similar to Elisa’s experience.

But don’t let that deter you from considering the Nectar. I found its edge support pretty impressive for a foam mattress, and when you combine that with its high motion isolation score, it yields a nice bed for couples. It’s not as bouncy as a hybrid, but it should provide enough response (3.5/5) to move around on the surface if you need to change positions during sleep or sex. It also didn’t trap heat like most foam beds, thanks to its cooling cover, so it might satisfy hot sleepers who prefer this type of mattress.

Want something with more pressure relief? You might like the Nolah Evolution. Otherwise, read our full Nectar Classic review to find out more.

The WinkBed—especially the king-size—is a luxurious hybrid mattress with a traditional innerspring feel. This is because of the tall, sturdy coil unit that makes up the bulk of the bed’s support system. These individually wrapped coils are zoned so there’s concentrated support in the center of the mattress, providing necessary lift for the lower back. This earned the bed its perfect 5/5 support score, and the same for edge support, as they help to bolster the perimeter. 

The WinkBed comes in multiple firmness options, but we personally tested the Luxury Firm model of this bed. I found it to have a lifted feel with some pressure relief from the pillow top. Elisa noted that she “felt great” on her back and side. She added that “it wasn’t ideal for stomach sleeping, but some lightweight stomach sleepers might like it.” I also found it too soft to keep my hips elevated in that position, so as a heavier sleeper, I might need something firmer.

On the other hand, those who switch sleeping positions throughout the night will enjoy the level of responsiveness (4.5/5) that the WinkBed provides. In fact, we refer to it as “a combo sleeper’s dream” because of how easy it is to move around on. This should also be beneficial for activities like sex, but it leads to more motion carrying across the bed’s surface, a problem for some couples. During our motion isolation (3.5/5) tests, I noticed disturbance in the water glass and some from my fellow tester’s movements as we tried out the bed together. (For a hybrid with better motion isolation, you might like the Helix Midnight, also on this list.)

For more information about this bed, read our full WinkBed mattress review.

Pillow top beds are known for their luxurious feel on the surface, and upgrading to a king-size in one of these fancy beds will have you living the life of royalty. Might I suggest considering the DreamCloud Premier for this category: its plush cashmere and foam blend pillow top provides luxurious cushioning that helps relieve pressure in sensitive areas of your body. This thick, plush surface also makes the bed a star in absorbing motion, for which I gave it a 4/5 score.

The hybrid construction underneath the quilted pillow top provides ample support, so this mattress really has the best of both worlds—the comfort of a soft foam mattress and the support and durability of an innerspring mattress. I felt the DreamCloud Premier’s build merited an overall support score of 4/5. For me, I most enjoyed it while sleeping on my back, as the pillow top contoured to my body while the pocketed coils kept my spine aligned. I think back sleepers of all sizes should find their match with the Premier, and a fair amount of side sleepers too, thanks to the pressure relief the Premier offers.

Despite this being a well-rounded mattress, there’s some things to keep in mind. The Premier didn’t have the most robust edge support, probably the fault of its thick comfort layers. We only gave it a 3/5, so not the worst, but definitely not its shining feature. These same softer top layers may make this a difficult bed for stomach sleepers, too. These folks might want to check out the original DreamCloud hybrid for a firmer feel.

Read our full DreamCloud Premier mattress review for more information.

If you’ve visited some of our other best-of lists you may have noticed that the Saatva appears quite often. It’s true — we love this mattress, and the testing data speaks for itself. The two sets of coils, combined with a plush pillow top, deliver that luxury hotel feel that so many people look for. Sleepers who struggle with back pain will appreciate how the bed will keep your spine in its natural alignment, a reason it earned a 4.5/5 support score from mattress testers.

I don’t think I’ve seen a mattress that has our backs more than the Saatva. This mattress is outfitted with a variety of unique features that are tailored to lumbar support and combating pain in this region. In the Euro pillow top, there’s a crest of memory foam shaped to contour to the lower back. The zoned support in the first coil unit keeps it firmer in the center of the mattress, and also contains a spinal wire, which is an S-shaped rod to help coax your spine into the proper posture. The second coil unit not only backs up the support of the first, but contributes to the bed’s overall durability (4/5). 

One of our writers, Livvi, owns a Saatva mattress and said her favorite feature is the bed’s bounce (4.5/5), explaining, “I flail around like a fish in my sleep, and I never feel ‘stuck’ on the bed’s surface when I do so.” She also found the Luxury Firm model to be surprisingly versatile: “I switch between my back, side, and stomach and feel pretty comfortable in each position.” Unfortunately, this responsiveness leads to sub-par motion absorption. With a 3/5 motion isolation score, it’s safe to say that if you’re a light sleeper with a restless partner, stay away.

If you want a bed with better motion isolation, you might like the DreamCloud Premier, also on this list. Read our full Saatva mattress review for more information.

If you’re upgrading to a bigger bed, why not upgrade to an even more luxurious one? You might be wondering how we define luxury in a bed. Well, most of it comes down to the quality of materials and construction. With a height of 15”, along with sturdy coils for support (4/5) and an Edge Support System for a strong perimeter (4/5), The Nolah Evolution should last you for at least 10 years while maintaining its structural integrity and comfortable feel. 

The Nolah Evolution earned high marks in both response (4/5) and motion transfer (4/5), which is a rarity, as these categories tend to cancel each other out. However, this might make it even more appealing to couples, per Elisa’s claims: “When getting intimate, many couples want a mattress that has good responsiveness and bounce. If this is top of mind, the Nolah Evolution is a great pick. Its comfortable top layers won’t make you feel stuck inside, and the innersprings create a nice bounce.” 

Temperature-regulating features like its special heat escape gusset, open-celled foam, and cooling cover provide airflow and earned the Nolah Evolution a stellar 5/5 in this area. The edge support on this mattress is also enviable; I only recorded about 3.5” of sagging when I sat on the perimeter. I felt the foams collapsing a bit, but not the coils, hence its 4/5 score. 

As a luxury mattress, it’s worth a pretty penny, so the major downside to the Nolah Evolution is the price — especially for an already pricey king size bed. Thankfully, we have a swath of affordable options on this list, like the Nectar or Brooklyn Bedding Signature Hybrid.

Read our full Nolah Evolution mattress review for more information.

When we say “best priced” we don’t necessarily mean cheapest. Rather, the Brooklyn Bedding Signature Hybrid earns a spot on this list because of its great value. The company owns its own factory, so the brand is able to cut out the middleman and price beds lower than many of the comparable competitors. A king is priced at just a little over $1,000 after discounts. Compare this with its 4/5 scores in support, edge support, and durability, and it’s easy to see why it earned this spot. 

The Signature comes in multiple firmness levels, but we tested out the Medium model. Elisa thought that it “worked really well for me in just about any sleeping position,” and that she “preferred it for back sleeping, but I’m a combination sleeper, so I was comfortable on my side, too.” Stomach sleepers, I’d suggest you opt for the firm option to ensure your hips are properly lifted. Some heavyweight folks might want something firmer, too, to keep them from sinking in too far to the bed.

This bed is considered on the simpler side, but it still performs well in most categories. For example, the bed is swaddled in a thin, breathable cover that should keep you from overheating — with an option to upgrade to the Cloud Pillow Top for an even cooler feel (more than the 4/5 rating our testers gave the standard model of bed). However, its motion isolation does leave something to be desired. I saw a lot of rippling in our water glass test, so I only gave the bed a 3/5. If you want a hybrid with better motion isolation, you might like the Nolah Evolution Hybrid.

Read our full Brooklyn Bedding Signature Hybrid mattress review for more information

Athletes looking for a king size bed that could help optimize recovery may find that the Bear Elite Hybrid checks the boxes. Bear designs its beds for athletes who may deal with aches and pains, and the secret is the Celliant technology in its upgraded cover. The claim is that this material may assist with blood flow to promote muscle recovery, and can also keep you cool at night. While we can’t speak to whether or not the Celliant technology actually helps promote blood flow, we will say that the support and pressure relief we felt on the mattress might help mitigate aches and soreness, and that the bed felt cool to the touch (4.5/5).

The Bear Elite’s solid overall support score (4.5/5) is in part thanks to the individually-encased coil layer, along with extra coils around the perimeter, adding to the bed’s excellent edge support (4.5/5). These coils also give the bed some bounce (4/5), which Elisa noted “made it easy to move around on top of this bed. You shouldn’t feel ‘stuck inside’ this mattress.” This bed comes in Soft, Medium, and Firm options, and we tested the Medium, and I’d recommend it for most back and side sleepers.

One thing to keep in mind is the Bear Elite’s price. As the name implies, this mattress is on a more luxurious level, and the cost reflects the quality of its instruction and performance. This might deter most budget shoppers. Bear has a cost-friendly option, the Bear Original, but this is an all-foam bed as opposed to a hybrid. But it has the same Celliant cover option, and better motion isolation than the Elite (3.5/5).

Read our full Bear Elite Hybrid mattress review for more information.

Firm mattress fans, we’ve got you covered. The Plank mattress, made by Brooklyn Bedding, is an extra firm, flippable mattress, coming in at 8/10 on our firmness scale for the firm side and 9/10 on the extra-firm side. It’s designed to create an extremely flat sleeping surface that your body probably won’t sink into at all. Thanks to its ultra-firm feel, this mattress scores 5/5 for both overall support and edge support from testers.

Elisa felt supported on her stomach when testing the Plank Firm, but noted that “this bed was way too firm for back and side sleeping. If you really love firm beds, you might enjoy it for back sleeping, but overall, this bed isn’t for me.” Both sides are pretty inflexible, which is a boon for folks who have been let down by so-called firm beds. But if you’re looking for a firm feel with some pressure relief, the Plank won’t deliver. You might like a hybrid with thicker comfort foams, like the Firm model of the Saatva. 

It’s surprising to see a low motion isolation score (3/5) for a foam mattress, but the firmer nature of these layers lends them a large amount of response (5/5). This should make it easier to move around on the bed’s surface to get comfortable. Another possible drawback is the bed’s lackluster ability to regulate temperature (3.5/5), a byproduct of its all-foam construction. You can pay extra to have a cooling panel sewn into the cover on each side of the bed, but you might be better off just choosing a mattress with built-in cooling features, like the Bear Elite Hybrid.

Read our full Plank mattress review for more information, or check out some other extra firm mattresses.

Many times, too-soft mattresses allow the hips and shoulders of heavier people to sink deep into the mattress, throwing the spine out of alignment and potentially causing discomfort. With the Titan Plus, this isn’t an issue. As a heavyweight sleeper myself (6’7” and 270 lbs, for reference), you could say I’m the target demographic for this mattress. I found this bed to be super supportive (4.5/5), keeping my spine in a comfortable position when lying on my back and stomach.

The best mattresses for heavy people often fall on the firmer side, and this is true for the Titan Plus. We gave this bed a whopping 9/10 on our firmness scale. This not only brings support and durability (4/5) but also a sturdy perimeter, thanks to the industrial-strength coils. I felt secure both sitting and lying down near the edges on this bed, resulting in a 4.5/5 score. This can help couples spread out and make full use of their king-size space. Speaking of couples, the motion absorption (3/5) on this bed isn’t anything special, but it should be enough to stifle small movements.

Though the Titan Plus is touted as the best bed for heavyweight sleepers, I would hesitate to say it’s great for all side sleepers in this category. It still might be too firm to provide the proper pressure relief. On that note, sleepers of an average or lighter-weight may find this mattress too unyielding. So if you share the bed with a differently sized partner, you may want to look for a more versatile mattress, like the Saatva Classic.

Read our full Titan Plus mattress review for more information.