King Mattresses For Side And Back Sleepers

King mattresses for side and back sleepers offer the perfect blend of spacious comfort and tailored support for a restful night’s sleep. Designed to accommodate various sleeping positions, these king-sized options provide ample room to stretch out and find your ideal posture. Discover how the right king mattress can enhance your bedtime routine and help you wake up feeling refreshed, whether you prefer settling in on your side or resting comfortably on your back.

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Sleepy's By Sealy Memory Foam Medium Mattress

2813

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

3458

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 Basic Hybrid Mattress

1579

Starting at

$600⁹⁹

Medium Comfort, best for

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

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

Sleepy's By Sealy Memory Foam Plush Mattress

2276

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

2001

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

2402

Starting at

$595⁹⁹

$1500⁹⁹

$905 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Toss and Turn
Pain

72 hour sale ends Monday!

Beautyrest PressureSmart 2.0 Plush Pillow Top 13.75" Mattress

2206

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)

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1197

Starting at

$2000⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Toss and Turn
Pain

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

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2441

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)

Beautyrest PressureSmart 2.0 Hybrid Medium 13" Mattress

1271

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)

Stearns & Foster Estate 14.5" Firm Mattress

1043

Starting at

$2799⁰⁰

$2999⁰⁰

$200 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Bed Partner
Pain
Temperature

Receive $300 Instant Gift⁴ with purchase.

Serta Perfect Sleeper Sleep Excellence Plush Mattress

668

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

5193

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

5193

Starting at

$387⁹⁹

$1020⁹⁹

$633 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1491

Starting at

$855⁹⁹

$2000⁹⁹

$1145 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)

Tulo Lavender 10" Medium Plush Memory Foam Mattress

708

Starting at

$510⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Temperature

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1440

Starting at

$1000⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Bed Partner
Pain
Temperature

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

Purple Original Mattress

26760

Starting at

$1799⁰⁰

$1999⁰⁰

$200 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Allergies

Pressuresmart MF 12.5" Firm Mattress

181

Starting at

$2600⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

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

Sleepy's By Sealy Slumber Cushion Firm Mattress

236

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

590

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

Sleepy's By Sealy Slumber Medium Mattress

113

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 12" Firm Mattress

810

Starting at

$800⁹⁹

$999⁰⁰

$199 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

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

Beautyrest Silver BRS900 12" Plush Mattress

773

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

772

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)

King Mattresses For Side And Back Sleepers

Choosing a king mattress designed for side and back sleepers is an investment in both comfort and well-being, offering ample space and tailored support for a restful night. As summer winds down and the nights begin to cool, the importance of restorative sleep becomes even more noticeable—especially for those who value both room to stretch out and the specific support their preferred sleep position demands. King mattresses are a popular choice for couples, families, or anyone who enjoys sprawling out without limitations. The generous width of a king size bed means fewer disturbances from a partner’s movements, and more freedom to find your ideal sleeping posture, whether you’re curled up on your side or lying flat on your back. For side sleepers, pressure relief is key; a mattress that cushions the shoulders and hips helps prevent numbness and aches by distributing weight evenly. Back sleepers, on the other hand, benefit from a surface that supports the natural curve of the spine, promoting alignment and reducing the risk of waking up with stiffness. The right king mattress can strike a harmonious balance between plush comfort and sturdy support, ensuring that both side and back sleepers wake up feeling refreshed and pain-free.

When considering a king mattress for yourself or a loved one, it’s important to think about more than just size. Material composition, firmness level, and cooling features all play a role in the overall sleep experience. Mattresses designed for side and back sleepers often incorporate adaptive foams, zoned support layers, or hybrid constructions to cater to the unique needs of these sleep positions. For example, memory foam contours closely to the body, cradling pressure points for side sleepers, while innerspring or hybrid models offer the responsive support that back sleepers often appreciate. If you’re shopping for a couple with different sleep preferences, a king mattress with dual comfort zones or motion isolation can be a thoughtful solution. Gifting a king mattress is a grand gesture—perfect for newlyweds setting up their first home, parents upgrading their master bedroom, or anyone celebrating a major life milestone. As the air turns crisp and routines settle in for the fall, a new mattress can transform bedtime into a sanctuary, making it easier to unwind after busy days and wake up ready for what’s ahead. For those seeking additional guidance, our curated recommendations and the insights found on our Best King Mattress For Side Sleepers page can help you make a choice that’s perfectly suited to your sleep style. Whether you’re looking to enhance your own sleep or surprise someone special, a king mattress tailored for side and back sleepers is a gift that delivers comfort, support, and plenty of space to dream.