10 Best memory foam mattress kings of 2025

Save up to 34% off

Best Choice

1

COOL GEL
Cool Gel Chill 14 Inch Medium Firm Memory Foam Mattress King Size, with 2 Bonus Cool Gel Memory Foam Bed Pillows, 14" with Pressure Relief, CertiPUR-US Certified, Cooling King Mattress in a Box
Main highlights

Cooling Gel Comfort
3.5-inch cool gel memory foam for temperature regulation and comfort.

Ideal for Firm Sleepers
Best for those who prefer a firm mattress with excellent support.

Highly Rated Support
Praised for its supportive structure, especially for back and side sleepers.
9.6

Exceptional

Our Rating

8.9
worth the money

8.9
lasts a long time

8.9
Durability
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
Value for Money

2

KOULABR Z

KOULABR Z King Size Mattress,14 Inch King Mattress in a Box,Superior Hybrid with Gel Memory Foam or Back & Lumbar Support,100 Night Trial,Maximum Support,Pressure Relief,Zoned Support Spring, Firm
9.4

Excellent

Our Rating
3

Novilla
Novilla King Mattress, 12 Inch King Size Memory Foam Mattress with Comfort Foam for Pressure Relief & Cool Fresh Sleep, Removable Washable Cover,Mattresses in a Box,Medium Firm

15% Off
Main highlights

Healthy Sleep Design
CertiPUR-US certified foam ensures a healthier sleep environment.

Ideal for Hot Sleepers
Cooling fabric and foam provide a cooler night's sleep.

Comfort and Support
Customers praise its balance of softness and firmness.
Key specs
- size:King
- construction:2-layer foam system
- fill material:Memory foam
- dimensions:80 x 76 x 12 inches
- top style:Knitted fabric cover
9.1

Excellent

Our Rating

9.7
worth the money

8.7
quality of sleep

8.4
Comfort
4

ZINUS
ZINUS 12 Inch Green Tea Memory Foam Mattress [New Version], King, Fiberglass free, Medium Firm Feel, Zoned Pressure Relief, Certified Safe Foams & Fabric, Mattress in A Box
Main highlights

Environmentally Friendly Design
Patented zoned pressure relief technology reduces aches and ships in smaller box for reduced carbon footprint.

Ideal for Budget-Conscious Shoppers
Perfect for those seeking a comfortable, affordable mattress with medium-firm support and pressure relief.

Praised for Motion Isolation
Customers frequently highlight the mattress's excellent motion isolation, ideal for undisturbed sleep.
Key specs
- size:King
- construction:Zoned pressure relief
- fill material:Memory Foam
- dimensions:80 x 76 x 12 inches
- top style:N/A
9.0

Excellent

Our Rating
5

Novilla
Novilla King Size Mattress, 12 Inch Gel Memory Foam King Mattress for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating, Bliss

16% Off
Main highlights

Cooling Gel Memory Foam
The Novilla King Mattress features gel-infused memory foam for a cool sleep experience.

Ideal for Couples
Perfect for couples due to motion isolation and medium firmness.

Highly Praised Comfort
Customers love the comfort and support, reducing back pain.
Key specs
- size:King
- construction:4-layer all-foam system
- fill material:Memory foam
- dimensions:80 x 76 x 12 inches
- top style:Gel-infused memory foam
8.9

Very Good

Our Rating

9.9
lasts a long time

9.9
Aroma

8.2
quality of sleep
See Today’s Deals & Prices
6

Novilla
Novilla King Size Mattress, 12 inch King Mattress in a Box, Gel Memory Foam Mattresses for Cooling Night Sleep, Comfort Support and Pressure Relief, CertiPUR-US Certified
Main highlights

Cooling and Breathability
The Novilla mattress features NanoGel memory foam and wave-cut foam, enhancing airflow by 30% for a cool, comfortable sleep.

Ideal for Couples
With 5 layers of foam, it absorbs noise and vibrations, ensuring undisturbed sleep even with partner movement.

Praised Comfort
Customers frequently highlight the mattress's ability to relieve pressure points and maintain spinal alignment.
Key specs
- size:King
- construction:5 foam layers
- fill material:Gel Memory Foam
- dimensions:80 x 76 x 12 inches
- top style:Quilted
8.7

Very Good

Our Rating
7

ZINUS
ZINUS 12 Inch Green Tea Cooling Memory Foam Mattress [New Version], King, Fiberglass Free, Medium Firmness, Cooling Gel Foam, Certified Safe Foams & Fabric, Mattress in A Box
Main highlights

Cooling Gel Memory Foam
Topped with soothing gel memory foam that regulates temperature for a cooler sleep experience.

Ideal for Guest Rooms and RVs
Perfect for guest rooms, campers, and small spaces needing comfort and affordability.

Highly Rated Comfort
Customers frequently praise the mattress's balance of support and comfort.
Key specs
- size:King
- construction:CertiPUR-US certified
- fill material:Memory Foam
- dimensions:80 x 76 x 12 inches
- top style:Gel Memory Foam
8.6

Very Good

Our Rating

8.2
worth the money

8.2
quality of sleep

8.2
Comfort
8

ZINUS
ZINUS 10 Inch King Cooling Essential Memory Foam Mattress [NewVersion], Fiberglass Free, Medium Feel, Breathable Cooling Layers, Certified Safe Materials
Main highlights

Cooling Comfort and Eco-Friendly Design
Breathable Airflow memory foam keeps you cool and comfortable, reducing carbon footprint with compact shipping.

Optimal for Pressure Relief and Joint Support
Ideal for adults seeking pressure relief and improved circulation, enhancing joint support and spinal alignment.

Highly Rated for Comfort and Support
Customers praise the mattress for its medium feel comfort and supportive memory foam layers.
Key specs
- size:King
- construction:Memory Foam
- fill material:Memory Foam, High Density Foam
- dimensions:80L x 76W x 10Th
- top style:Tight Top
8.4

Good

Our Rating
9

Novilla

Novilla 12 Inch King Size Mattress, King Memory Foam Mattress for Motion Isolation & Contour Support with Cooling Wave-Cut Foam & High-Density Support Foam Mattresses in a Box Medium Firm Feel

14% Off
8.3

Good

Our Rating
10

Gsleepee

Gsleepee King Size Mattress, 12 Inch King Mattress in a Box, Gel Memory Foam Hybrid Mattresses for Motion Isolation, Soft and Comfortable, Pressure Relief, Medium Firm Support

34% Off
8.2

Good

Our Rating

8.2
worth the money

8.0
quality of sleep

8.0
Comfort

10 Best memory foam mattress kings of 2025

1

Cool Gel Chill 14 Inch Medium Firm Memory Foam Mattress King Size, with 2 Bonus Cool Gel Memory Foam Bed Pillows, 14" with Pressure Relief, CertiPUR-US Certified, Cooling King Mattress in a Box

8.9

8.9

8.9

How do we rank?

How do we rank?

Analyzing top stores

2

KOULABR Z King Size Mattress,14 Inch King Mattress in a Box,Superior Hybrid with Gel Memory Foam or Back & Lumbar Support,100 Night Trial,Maximum Support,Pressure Relief,Zoned Support Spring, Firm

3

Novilla King Mattress, 12 Inch King Size Memory Foam Mattress with Comfort Foam for Pressure Relief & Cool Fresh Sleep, Removable Washable Cover,Mattresses in a Box,Medium Firm

9.7

8.7

8.4

4

ZINUS 12 Inch Green Tea Memory Foam Mattress [New Version], King, Fiberglass free, Medium Firm Feel, Zoned Pressure Relief, Certified Safe Foams & Fabric, Mattress in A Box

5

Novilla King Size Mattress, 12 Inch Gel Memory Foam King Mattress for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating, Bliss

9.9

9.9

8.2

6

Novilla King Size Mattress, 12 inch King Mattress in a Box, Gel Memory Foam Mattresses for Cooling Night Sleep, Comfort Support and Pressure Relief, CertiPUR-US Certified

7

ZINUS 12 Inch Green Tea Cooling Memory Foam Mattress [New Version], King, Fiberglass Free, Medium Firmness, Cooling Gel Foam, Certified Safe Foams & Fabric, Mattress in A Box

8.2

8.2

8.2

8

ZINUS 10 Inch King Cooling Essential Memory Foam Mattress [NewVersion], Fiberglass Free, Medium Feel, Breathable Cooling Layers, Certified Safe Materials

9

Novilla 12 Inch King Size Mattress, King Memory Foam Mattress for Motion Isolation & Contour Support with Cooling Wave-Cut Foam & High-Density Support Foam Mattresses in a Box Medium Firm Feel

10

Gsleepee King Size Mattress, 12 Inch King Mattress in a Box, Gel Memory Foam Hybrid Mattresses for Motion Isolation, Soft and Comfortable, Pressure Relief, Medium Firm Support

8.2

8.0

8.0

Sign up and get exclusive special deals