Side Sleeper King Mattresses

Discover the perfect blend of comfort and support with our selection of side sleeper king mattresses, designed to enhance your sleep experience. Side sleepers often need a mattress that provides ample cushioning for shoulders and hips while maintaining proper spinal alignment. Our curated collection offers a variety of options tailored to meet these needs, ensuring restful nights and refreshed mornings. Whether you're revamping your bedroom or seeking an upgrade for better sleep quality, explore our range of side sleeper king mattresses to find the ideal fit for your lifestyle.

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Sleepy's By Sealy Memory Foam Medium Mattress

2844

Starting at

$470⁹⁹

Medium Comfort, best for

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

Sleepy's By Sealy Medium Euro Top Mattress

3471

Starting at

$600⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Bed Partner

Queen mattress & base now $499 with code ELEVATE (must add base to cart)

Sleepy's By Sealy Memory Foam Plush Mattress

2289

Starting at

$532⁹⁹

$1900⁹⁹

$1368 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

Serta iSeries 2.0 Hybrid 1000 12" Medium Mattress

2005

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 Perfect Sleeper Charlotte 2.0 Medium Euro Top Mattress

2409

Starting at

$595⁹⁹

$1500⁹⁹

$905 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Toss and Turn
Pain

Beautyrest PressureSmart 2.0 Plush Pillow Top 13.75" Mattress

2215

Starting at

$1900⁹⁹

$2400⁹⁹

$500 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner

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

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2444

Starting at

$800⁹⁹

$1500⁹⁹

$700 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)

Serta Perfect Sleeper Sleep Excellence Plush Mattress

672

Starting at

$1100⁹⁹

$1700⁹⁹

$600 OFF

Plush Comfort, best for

Side Sleepers
Pain
Toss and Turn
Pain

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

Tulo Bamboo 10" Medium Plush Green Tea Memory Foam Mattress

5201

Starting at

$338⁹⁹

$890⁹⁹

$552 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Tulo Bamboo 12" Medium Plush Green Tea Memory Foam Mattress

5201

Starting at

$387⁹⁹

$1020⁹⁹

$633 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Beautyrest BR800 13.5" Medium Pillow Top Mattress

1583

Starting at

$800⁹⁹

$1500⁹⁹

$700 OFF

Medium Comfort, best for

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

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

Tulo Lavender 10" Medium Plush Memory Foam Mattress

711

Starting at

$510⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Sleepy's By Sealy Slumber Cushion Firm Mattress

237

Starting at

$560⁹⁹

$2000⁹⁹

$1440 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)

Sealy Essentials Winter Green 13" Plush Euro Pillow Top Mattress

498

Starting at

$730⁹⁹

$1460⁹⁹

$730 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

Beautyrest BR800 12" Plush Euro Top Mattress

591

Starting at

$570⁹⁹

$1400⁹⁹

$830 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)

Tulo Lavender 12" Plush Memory Foam Mattress

615

Starting at

$590⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Temperature

Tulo Lavender 8" Medium Memory Foam Mattress

455

Starting at

$460⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Beautyrest Silver BRS900 12" Plush Mattress

779

Starting at

$730⁹⁹

$1700⁹⁹

$970 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature

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

776

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

1590

Starting at

$576⁹⁹

$1200⁹⁹

$624 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Toss and Turn

Nectar Premier 13" Medium Memory Foam Mattress

147

Starting at

$1099⁰⁰

$1799⁰⁰

$700 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Serta Perfect Sleeper Nurture Night 13.5" Medium Mattress

683

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)

Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

608

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

$2300⁹⁹

$2800⁹⁹

$500 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)

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

348

Starting at

$690⁹⁹

$1380⁹⁹

$690 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

Serta Perfect Sleeper Midsummer Nights 11" Plush Eurotop Mattress

596

Starting at

$799²⁰

$999⁰⁰

$200 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)

Side Sleeper King Mattresses

Choosing the right king mattress for side sleepers is a decision that can transform the quality of your rest and the comfort of your nights, especially as the seasons shift and the August heat lingers in the air. Side sleepers have unique needs, often seeking a balance of support and plushness that cradles the body’s curves while maintaining healthy spinal alignment. The king size offers an expansive surface, ideal for couples or anyone who loves to sprawl out, and is particularly well-suited for side sleepers who benefit from the extra room to shift positions throughout the night. Whether you’re furnishing a master bedroom, preparing a luxurious guest suite, or gifting a newlywed couple with the ultimate sleep upgrade, the king best mattress for side sleepers brings together ample space and specialized comfort in one inviting package.

When searching for the best king size mattress for side sleepers, it’s important to consider how the mattress contours to your shoulders and hips, which bear the brunt of your weight in this position. A mattress that’s too firm can lead to pressure points and numbness, while one that’s too soft may not provide adequate support for your lower back. Many side sleepers gravitate toward hybrid designs or memory foam layers that offer just the right amount of give, allowing the spine to remain neutral and the muscles to fully relax. During the warm nights of late summer, features like breathable covers and cooling gel infusions become especially valuable, helping you stay comfortable as you drift off. The best pillowtop mattress for side sleepers can add an extra layer of plushness, making it feel like you’re sinking into a cloud at the end of a long day. This kind of mattress is a thoughtful gift for someone recovering from injury, a parent who needs restorative sleep, or anyone who appreciates the luxury of a well-crafted sleep surface.

Selecting the right mattress is a deeply personal experience, shaped by your body type, sleep habits, and even your climate. Some side sleepers may find themselves sharing the bed with a partner who prefers a different sleep position, in which case it’s helpful to explore a range of options to meet everyone’s needs. For those who sometimes switch between side and stomach sleeping, you may want to compare features with models designed for other positions, such as those found on the King Stomach Sleeper Mattresses page. As you settle into the rhythm of late summer, investing in the best king size mattress for side sleepers can make every night feel like a retreat, supporting restful sleep and gentle mornings. Whether you’re curling up with a good book, sharing quiet moments with a loved one, or simply stretching out to enjoy the cool breeze from an open window, the right mattress is the foundation for comfort, health, and peace of mind—season after season.