Gel Foam King Mattresses

Discover the ultimate in sleep comfort with our selection of gel foam king mattresses, designed to elevate your nighttime experience. Perfect for those seeking a spacious sleep surface, these mattresses combine innovative gel foam technology with the expansive comfort of a king-sized bed. Whether you're upgrading your current mattress or furnishing a new bedroom, our gel foam king mattresses offer the perfect blend of support and luxury. Explore our collection to find the ideal match for your sleep needs and transform your nights into restful retreats.

Sort & Filter

Sleepy's By Sealy Memory Foam Medium Mattress

2736

Starting at

$470⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Toss and Turn

Sleepy's By Sealy Memory Foam Plush Mattress

2243

Starting at

$532⁹⁹

$1900⁹⁹

$1368 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

72 hour sale ends Monday!

Serta iSeries 2.0 Hybrid 1000 12" Medium Mattress

1963

Starting at

$2100⁹⁹

$2600⁹⁹

$500 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Bed Partner
Pain

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Serta iSeries 2.0 Hybrid 3000 13.5" Medium Mattress

727

Starting at

$2900⁹⁹

$3500⁹⁹

$600 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Bed Partner
Pain

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Beautyrest PressureSmart 2.0 Hybrid Medium 13" Mattress

1240

Starting at

$1700⁹⁹

$2950⁹⁹

$1250 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

2659

Starting at

$710⁹⁹

$1700⁹⁹

$990 OFF

Extra Firm Comfort, best for

Back;Stomach Sleepers
Bed Partner
Pain
Temperature

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Sealy Essentials Sudley 8.5" Firm Mattress

922

Starting at

$1000⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain

Tulo Bamboo 10" Medium Plush Green Tea Memory Foam Mattress

5135

Starting at

$338⁹⁹

$890⁹⁹

$552 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Sleepy's By Sealy Slumber Cushion Firm Mattress

226

Starting at

$2000⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Bed Partner
Toss and Turn
Pain

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Beautyrest BR800 12" Plush Euro Top Mattress

584

Starting at

$590⁹⁹

$1400⁹⁹

$810 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Sleepy's By Sealy Slumber Medium Mattress

109

Starting at

$640⁹⁹

$2300⁹⁹

$1660 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Bed Partner
Toss and Turn
Pain

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Serta Perfect Sleeper Nurture Night 14.5" Pillow Top Mattress

756

Starting at

$917⁹⁹

$1249⁰⁰

$332 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress

1586

Starting at

$576⁹⁹

$1200⁹⁹

$624 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Toss and Turn

Serta Perfect Sleeper Nurture Night 13.5" Medium Mattress

673

Starting at

$879²⁰

$1099⁰⁰

$220 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Tulo 11" Medium Firm Cooling Hybrid Mattress

197

Starting at

$492⁹⁹

$1300⁹⁹

$808 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

602

Starting at

$879²⁰

$1099⁰⁰

$220 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Pressuresmart MF 15" Plush Euro Top Mattress

Starting at

$2800⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Zinus Green Tea 10 Cushioned Firm Memory Foam Mattress

1062

Starting at

$439⁰⁰

$860⁹⁹

$421 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature

Tulo 13" Medium Firm Cooling Hybrid Mattress

161

Starting at

$562⁹⁹

$1500⁹⁹

$938 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Sealy Essentials Spruce 5.5" Firm Mattress

1031

Starting at

$500⁹⁹

$950⁹⁹

$450 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain

Zinus Green Tea 8 Cushioned Firm Memory Foam Mattress

1010

Starting at

$379⁰⁰

$720⁹⁹

$341 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature

Zinus Cooling Gel Memory Foam Pocket Hybrid 10" Mattress

Starting at

$492⁹⁹

$1430⁹⁹

$938 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Bed Partner
Pain
Temperature

Zinus MyGel 8" Medium Memory Foam Mattress

237

Starting at

$379⁰⁰

$760⁹⁹

$381 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Toss and Turn

Zinus MyGel 12" Medium Memory Foam Mattress

296

Starting at

$499⁰⁰

$980⁹⁹

$481 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Toss and Turn

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Mattress

3467

Starting at

$4099⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm 3-month free trial

Tempur-Pedic TEMPUR-ProAdapt 12" Soft Mattress

2659

Starting at

$4099⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase + Calm 3-month free trial

Gel Foam King Mattresses

A gel foam king mattress offers a unique blend of comfort, support, and cooling technology, making it an ideal choice for those who value restful, uninterrupted sleep—especially as the temperatures rise in June and the nights grow warmer. The gel-infused foam layers are designed to provide contouring support that gently cradles the body, relieving pressure points while maintaining a refreshing sleep surface. This is particularly appealing for couples or individuals who tend to sleep hot, as the gel particles actively work to dissipate heat and regulate temperature throughout the night. The generous dimensions of a king size mattress mean there’s ample space to stretch out, making it perfect for families who enjoy weekend mornings together or for those who simply appreciate the luxury of extra room. If you’re searching for a firm king size mattress nearby, the gel foam category offers options that combine sturdy support with plush comfort, catering to a wide range of sleep preferences and body types.

Choosing a gel king mattress is not just about size—it's about elevating the entire sleep experience. Whether you’re outfitting a master bedroom, upgrading your guest suite, or selecting a memorable wedding or housewarming gift, a king size mattress firm in feel can transform the way someone sleeps. Imagine settling in after a long summer day, the gentle embrace of gel foam beneath you, as the mattress quietly adapts to your shape and movement. For those with back or joint concerns, the adaptive nature of a foam king mattress can help alleviate discomfort and encourage proper spinal alignment. Parents with young children may appreciate the durability and easy maintenance of gel foam, while pet owners will find that the resilient surface stands up well to everyday use. For anyone interested in exploring the full range of benefits and options, our collection of Gel Foam Comfort Mattresses provides a curated assortment to suit every lifestyle, ensuring that restful, cool sleep is never out of reach.

As summer unfolds and routines shift with the season, a gel foam mattress becomes even more valuable—offering a cool retreat after sun-soaked afternoons and a supportive haven for deep, restorative rest. The versatility of a king size mattress means it can accommodate everything from late-night movie marathons with the family to quiet moments of relaxation with a good book and a cool breeze drifting through the window. For those who prioritize both comfort and longevity in their sleep investments, the advanced materials and thoughtful construction of gel foam mattresses stand out. The subtle balance of support and softness makes them a favorite among a diverse range of sleepers, from side and back sleepers to those who share their bed with a partner or a pet. As you consider your next mattress purchase, remember that the right gel foam king mattress can be more than just a place to sleep—it can be the foundation for better mornings, brighter days, and a healthier, more comfortable life.