Modern King Size Cooling Memory Foam Mattress

Shop the Modern King Size Cooling Memory Foam Mattress collection to find comfortable sleep solutions designed for spacious bedrooms and a range of sleep preferences. Explore king size mattresses in memory foam styles and compare options to help make choosing your next mattress easy.

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Sleepy's By Sealy Memory Foam Medium Mattress

3474

Starting at

$589⁹⁹

$889⁹⁹

$300 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Toss and Turn
Temperature

Sleepy's Basic Memory Foam Firm Mattress

3213

Starting at

$299⁷⁷

$999⁹⁹

$700 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn
Support

Beautyrest PressureSmart 2.0 Hybrid Medium 13" Mattress

1758

Starting at

$1474⁹⁹

$2949⁹⁹

$1475 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3296

Starting at

$709⁹⁹

$1699⁹⁹

$990 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Allergies
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 11.25" Firm Mattress

2233

Starting at

$619⁹⁹

$1299⁹⁹

$680 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Estate 14.5" Firm Mattress

1809

Starting at

$2799⁰⁰

$3099⁰⁰

$300 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

Receive $300 Instant Gift⁴ with purchase.

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1810

Starting at

$859⁹⁹

$1999⁹⁹

$1140 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1745

Starting at

$809⁹⁹

$1099⁹⁹

$290 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Allergies
Bed Partner
Temperature
Pain
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Bamboo 8" Medium Green Tea Memory Foam Mattress

5555

Starting at

$329⁹⁹

$809⁹⁹

$480 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Serta Perfect Sleeper Nurture Night 14.5" Pillow Top Mattress

1130

Starting at

$979⁰⁰

$1249⁰⁰

$270 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Nurture Night 12" Firm Mattress

1186

Starting at

$859⁰⁰

$999⁰⁰

$140 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Lux Estate Elite 16" Medium Euro Pillow Top Mattress

981

Starting at

$4099⁰⁰

$4699⁰⁰

$600 OFF

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Receive $300 Instant Gift⁴ with purchase.

A modern king size cooling memory foam mattress combines spacious comfort with advanced materials designed to help promote a cooler, more comfortable night of sleep. The generous king size surface gives couples more room to stretch out while helping reduce the feeling of crowding, and cooling memory foam can contour to the body for pressure-relieving support. Look for a mattress with breathable foam, an airflow-focused design or a cool-to-the-touch cover to help manage heat throughout the night. Many cooling memory foam mattresses also feature layers with different levels of firmness, allowing you to choose the balance of cushioning and support that best matches your sleep position, body type and personal comfort preferences. Choosing the right modern king size cooling memory foam mattress starts with comparing support, temperature regulation and overall feel. Side sleepers may prefer a plusher comfort layer that cushions the shoulders and hips, while back and stomach sleepers often benefit from a more supportive surface that helps maintain a comfortable spinal alignment. Couples can also look for motion-isolating memory foam to help minimize the transfer of movement across the mattress. Mattress Firm offers a wide selection of king size memory foam mattresses, including cooling designs with pressure relief and supportive construction, so you can find a comfortable sleep solution that helps you get better zzz's and live well.

What is a cooling memory foam mattress made of? + -

A cooling memory foam mattress typically combines pressure-relieving memory foam with breathable comfort layers, ventilated foam or cooling fibers. The exact materials vary by mattress.

How does a modern cooling memory foam mattress differ from traditional memory foam? + -

Modern designs often use more breathable foams, updated cover fabrics and airflow-focused construction. These features are intended to create a more open, contemporary feel than traditional dense memory foam.

What firmness options are available in cooling memory foam mattresses? + -

Cooling memory foam mattresses are available in soft, medium and firm feels. Your preferred feel may depend on your sleep position, body type and how much cushioning or support you enjoy.

Can a cooling memory foam mattress be used on an adjustable base? + -

Many memory foam mattresses are designed to work with compatible adjustable bases. Review the mattress and base specifications to confirm compatibility before pairing them.

How should I care for a cooling memory foam mattress? + -

Use a supportive foundation, rotate the mattress if the manufacturer recommends it and protect the surface with a breathable mattress protector. Always follow the care instructions provided with your mattress.