Top 10 Best Memory Foam King Mattresses
for October 2022

MOOZ's editors independently choose recommendations. Purchases made through our links may earn us commissions.

Memory foam mattresses are all the rage right now, and with good reason. They're great for some sleepers, like back sleepers, who get pressure points and other sleep disturbances. But memory foam isn't for everyone. Want to learn more about which mattresses work best for different sleep positions? Check out our Mattress Buying Guide, which breaks down the best mattresses by sleep position and other important specs, including thickness, firmness rating, and warranty length.

Memory foam mattresses can be soft, medium or firm, and each type has different benefits and drawbacks. To help narrow down your search for the best memory foam king mattress, we test memory foam mattresses in the MOOZ Labs to study their firmness, performance, comfort, and cooling. Our consumer testers and experts evaluate each mattress on factors like how well it supports and contours to the body, temperature regulation, and pressure relief. These are the 10 best memory foam king mattresses you can buy:

1
9.7
SCORE
LUCID 14 Inch Memory Foam Plush Feel – Gel Infusion-Hypoallergenic Bamboo Charcoal – Breathable Cover Bed Mattress Conventional, King, White

LUCID 14 Inch Memory Foam Plush Feel – Gel Bamboo Infusion-Hypoallergenic Charcoal – Breathable Cover Bed Mattress Conventional

by LUCID

This mattress features a 14 inches plush feel ideal for side and back sleepers that prioritize a plush feel above all else

The Lucid mattress we tried was a premium model, so it's a little thicker and more expensive than many other mattresses we tested. But it offered the most balanced combination of support, comfort, and cooling. First, the support is outstanding. The mattress is firmer at the bottom, which makes it more comfortable, and it gets softer as you move up. But it doesn't sink in the middle, so you can move comfortably from one side to the other. The gel foam layer offers a cooler sleep experience than traditional memory foam and helps regulate body temperature and increase circulation. The memory foam layer is topped with 2 inches of aerated, open-cell foam, which provides a plush, supportive feel. But the foam stays comfortable and supportive without forming an imprint when you're lying on top of it. The mattress is 15 inches thick, which works great for us (a couple on the smaller side). The top cover is made of a stretchy knit fabric that feels great, and the mattress comes with a zipper cover, which means you can easily take it off and wash it.

2
9.6
SCORE
PrimaSleep Wave Gel Infused Memory Foam Mattress, 10'' H, King, Blue

PrimaSleep Wave Gel Memory Infused Foam Mattress

by Grantec Co., Ltd

3 layer construction for support and pressure relief, a perfect solution for sleepless nights

If you want a mattress that can keep you cool in the summer and warm and cozy in the winter, the PrimaSleep Wave might just fit the bill. Its two layers of memory foam and gel work together to evenly distribute your weight across the surface of the mattress as it adapts to your shape and temperature. This fabric is also breathable, so you won't sweat or overheat at night. The Wave also gets high marks for its extra 2-inch layer of HD foam, which minimizes the chances of you sleeping on a soft spot and being disturbed by a sinking feeling. The gel layer disperses heat buildup, so your nighttime temperatures won't fluctuate, either. While the Wave isn't the softest mattress we've tested, it still offers a decent amount of cushioning, and it's quite firm overall, so it offers a good amount of support. The PrimaSleep mattresses are reasonably priced and easy to clean, and they come with a 30-day trial so you can try them out before you commit. The only drawback is that, like most foam mattresses, the PrimaSleep Wave is heavy and bulky, so you'll need an extra hand to move it.

3
9.3
SCORE
Zinus 12 Inch Green Tea Memory Foam Mattress / CertiPUR-US Certified / Bed-in-a-Box / Pressure Relieving, King

Zinus 12 Inch Green Tea Memory Foam Mattress CertiPUR-US / Certified / Bed-in-a-Box / Pressure Relieving

by Zinus

EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box thats easily shipped and maneuvered into the bedroom; Simply unbox, unroll and this mattress do the rest, expanding to its original shape within 72 hours

The Zinus Green Tea Memory Foam Mattress came highly recommended by Consumer Reports, and if you like memory foam, this is a respectable contender. The green tea foam is infused with charcoal for extra odor control, and it uses a combination of 3 inches conforming memory foam, 2 inches soft foam, and 7 inches of high density support foam. We tested it on a full size frame, but the Zinus Green Tea conforms to most standard size frames, too. The mattress is CertiPUR US certified, meaning it's built without ozone depleters, TDCPP, mercury, lead, and other heavy metals regulated by the Consumer Product Safety Commission, and the foam does not emit toxic odors. The Zinus Green Tea also has some nice touches: the removable and washable cover is stretchy, the foam is wrapped with a smooth, breathable, waterproof covering, and the storage bag has a handle and wheels for portability. It's also reasonably priced.

4
9.3
SCORE
Ashley Chime 12 Inch Medium Firm Memory Foam Mattress - CertiPUR-US Certfied, King

Signature Design by Ashley Ashley Chime Inch 12 Medium Firm Memory Foam Mattress

by Ashley Furniture

Maintenance free: Made of hypoallergenic material to keep out dust mites, pollen, mold and pet danderperfect for kids or adults who suffer from allergies

The Ashley Chime memory foam mattress is a good choice for buyers who want to eliminate aches and pains or who just want a comfortable place to sleep on. It delivers both head and lumbar support, and the firm memory foam contours to your body in just the right places. It arrived compressed and rolled in a box, so it took about 10 minutes to unfold it and set it up on a bed frame. The memory foam was cool to the touch, and it felt softer and more comfortable than we expected after unboxing. Because of its firmness, the Chime was a good choice for spot treating sore spots, but it also gave even our side-sleepers plenty of pressure relief. It was relatively firm both when lying down and when sitting up, so it's a good option for anyone who likes their mattress firm. The Chime feels durable and sturdy, and it's a good fit for a King's bed frame. Because it comes with a one-year warranty, buyers are protected against manufacturing defects.

5
8.5
SCORE
Zinus 10 Inch Gel-Infused Green Tea Memory Foam Mattress / Cooling Gel Foam / Pressure Relieving / CertiPUR-US Certified / Bed-in-a-Box, King

Zinus 10 Inch Gel-Infused Green Tea Memory Foam Mattress / Gel Cooling Foam / Pressure Relieving / CertiPUR-US Certified / Bed-in-a-Box

by Zinus

EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box thats easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours

One of the most durable and comfortable mattresses we've ever reviewed. The Zinus Ten Inch Green Tea Memory Foam Mattress offers one of the most consistent comfort and support in our new mattress reviews: it's supportive without being too firm, and cooling without being too warm. Zinus mattresses are made in a factory that recycles all of its plastic, synthetic, and steel waste, and it's built with nonrecycled material that may be harmful to the environment. It's also CertiPUR-US certified for low emissions and is made in the USA. The only downside: the Zinus is a bit on the expensive side for a queen-size mattress, but you get a well-supported sleep surface that's built to last, and it's the best mattress we tested for this guide.

6
8.5
SCORE
Best Price Mattress 12 Inch Memory Foam Mattress, Calming Green Tea Infusion, Pressure Relieving, Bed-in-a-Box, CertiPUR-US Certified, King

Best Price Mattress 12 Memory Inch Foam Mattress

by Best Price Mattress - DROPSHIP

For best results, we recommend that you 1) Open the package within 72 hours upon receipt and 2) Allow 48 hours for the mattress to fully expand to its original dimension.

This is a quality mattress for a reasonable price. The 12-inch size is perfect for a guest bedroom, and the cover is removable for easy care. The memory foam makes this mattress feel luxurious, and it molds to your body as you lie down. This mattress has given me the best night's rest in years, and it's also lighter and thinner than I expected it to be. The cooling memory foam layer makes it feel like you're sleeping on a cloud. The mattress comes with a 90-night "feel, sleep, and love" guarantee, so you can try the mattress for an entire month and feel the difference.

7
8.2
SCORE
Zinus 8 Inch Ultima Memory Foam Mattress / Pressure Relieving / CertiPUR-US Certified / Bed-in-a-Box, King

Zinus 8 Inch Ultima Memory Foam Mattress Pressure / Relieving / CertiPUR-US Certified / Bed-in-a-Box

by Zinus, Inc

EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box thats easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours

The Zinus Ultima Memory Foam Mattress is a great value for the money. Made of CertiPUR-US certified foam, the Zinus is a sturdy, durable mattress that provides excellent support for both back and stomach sleepers. The mattress includes a 10-year warranty, which is the best warranty weve seen on a bedding product. In addition, this memory foam mattress is amazingly comfortable. Its soft foam layers and medium-firm inner core give this mattress a great feel, and the foam layers and inner core work together to provide a soft, cozy feel thats just right for relaxing. Although this mattress doesnt have a removable cover, its fairly easy to clean and maintain, and it comes with a removable zippered cover thats machine washable. We especially liked that this mattress has a medium-firm inner core, so it provides good support for back and stomach sleepers.

8
8.2
SCORE
Classic Brands Cool Gel Ventilated Memory Foam 10-Inch Mattress | CertiPUR-US Certified | Bed-in-a-Box, King

Classic Brands Cool Gel Ventilated Foam Memory 10-Inch Mattress

by Classic Brands

Mattress ships compressed, rolled in a box conveniently delivered to your door for easy set-up; frame/foundation/base not included

The Classic Brands Cool Gel Ventilated Memory Foam 10-Inch Mattress is comfortable, well-made, and easy to install. It has a cool gel-infused memory foam cover that makes it feel pleasant to lie on, especially after waking up in the morning. It was equally easy to fit this mattress into our bed frame. The medium-firm feel supports your lower back and back, and the mattress conforms to your body, so you can move around with ease. The mattress is also quite durable, and it comes with a 10-year warranty. As you might expect, the mattress is a bit more expensive than our former top pick, but it is well worth the extra.

9
8.2
SCORE
LUCID 10 Inch 2019 Gel Memory Foam Mattress - Medium Firm Feel - CertiPUR-US Certified, King

LUCID 10 Inch 2019 Memory Gel Foam Mattress

by Lucid

We only use CertiPUR US certified memory foam to ensure your uncompromising safety and comfort

This memory foam mattress is impressively comfortable. We slept comfortably throughout the night on the first night of use and woke up with a spring in our step. It's tough to compare this mattress to the others we reviewed because we didn' sleep on all of them at the same time--but while our prior favorite--the Avocado Green Mattress--was comfortable, this Lucid mattress is even better. It also was easier to setup and seems more durable; we feel confident that these mattresses will be with us for a long time.

10
7
SCORE

OLEE mattresses are hypoallergenic and antimicrobial, with gel-infused memory foam. The memory foam offers superior comfort and support. The 12 inch model is a king size and comes with a fitted storage cover. The I-Gel memory foam and high-density foam provide sufficient support. The mattress is durable and has a fair value.

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