Sleep Number King Size

Sleep Number King Size mattresses offer a luxurious sleep experience designed for those who value space and personalized comfort. Perfect for couples or anyone seeking extra room to stretch out, these king size options bring both style and support to your bedroom. Explore a range of Sleep Number King Size choices to find the perfect fit for your sleep preferences and bedroom décor. Upgrade your rest with a mattress that adapts to your unique needs and delivers exceptional quality night after night.

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Tempur-Pedic TEMPUR-Adapt 11" Medium Previous Generation Mattress

3531

Starting at

$2030⁷⁷

$2899⁰⁰

$869 OFF

Medium Comfort, best for

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

Sleepy's By Sealy Slumber Cushion Firm Mattress

272

Starting at

$2000⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basic Adjustable Base

Starting at

$300⁹⁹

FREE with select mattress purchase³.

Sleepy's Basic Memory Foam Firm Mattress

3026

Starting at

$300⁷⁷

$1000⁹⁹

$700 OFF

Firm Comfort, best for

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

Sleepy's Basic Innerspring Firm Mattress

8554

Starting at

$220⁹⁹

Firm Comfort, best for

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

Serta Perfect Sleeper Charlotte 2.0 Medium Euro Top Mattress

2601

Starting at

$750⁹⁹

$1500⁹⁹

$750 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest PressureSmart 2.0 Plush Pillow Top 13.75" Mattress

2689

Starting at

$1200⁰⁰

$2400⁹⁹

$1200 OFF

Plush Comfort, best for

Side Sleepers
Temperature;Bed Partner;Pain;Toss and Turn;Toss and Turn
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1386

Starting at

$2000⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-Ergo Smart Adjustable Base

892

Starting at

$2899⁰⁰

Calm app 3-month free trial with mattress purchase & registration

Beautyrest BR800 11.25" Firm Mattress

2187

Starting at

$565⁹⁹

$1300⁹⁹

$735 OFF

Firm Comfort, best for

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

Stearns & Foster Estate 14.5" Firm Mattress

1647

Starting at

$2999⁰⁰

Firm Comfort, best for

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

Receive $300 Instant Gift⁴ with purchase.

Sealy Essentials Sudley 8.5" Firm Mattress

989

Starting at

$500⁰⁰

$1000⁹⁹

$500 OFF

Firm Comfort, best for

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

Sleepy's By Sealy Slumber Medium Mattress

160

Starting at

$640⁹⁹

$2300⁹⁹

$1660 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Lavender 8" Medium Memory Foam Mattress

468

Starting at

$460⁹⁹

Medium Comfort, best for

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

Beautyrest Silver BRS900 12" Plush Mattress

1090

Starting at

$680⁹⁹

$1700⁹⁹

$1020 OFF

Plush Comfort, best for

Side Sleepers
Temperature;Pain;Bed Partner;Toss and Turn;Toss and Turn
Pain
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Nectar Premier 13" Medium Memory Foam Mattress

341

Starting at

$1099⁰⁰

$1799⁰⁰

$700 OFF

Medium Comfort, best for

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

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Mattress

3467

Starting at

$2899⁰⁰

Medium Comfort, best for

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

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

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Hybrid Mattress

2702

Starting at

$3199⁰⁰

Medium Comfort, best for

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

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

Tempur-Pedic TEMPUR-Adapt 11" Medium Hybrid Previous Generation Mattress

880

Starting at

$2240⁷⁷

$3199⁰⁰

$959 OFF

Medium Comfort, best for

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

Purple Restore Cool Touch 11.5" Hybrid Mattress

695

Starting at

$2699⁰⁰

$3299⁰⁰

$600 OFF

Medium Comfort, best for

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

$300 ^◇ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Previous Generation Mattress

6509

Starting at

$2870⁷⁷

$4099⁰⁰

$1229 OFF

Firm Comfort, best for

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

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Previous Generation Mattress

6375

Starting at

$2870⁷⁷

$4099⁰⁰

$1229 OFF

Medium Comfort, best for

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

Sleepy's By Sealy Memory Foam Firm Mattress

3026

Starting at

$410⁹⁹

$1100⁹⁹

$690 OFF

Firm Comfort, best for

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

Beautyrest BR800 11.5" Medium Firm Mattress

2909

Starting at

$529⁹⁹

$1300⁹⁹

$771 OFF

Medium Comfort, best for

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

Tempur-Pedic TEMPUR-LuxeAdapt 13" Soft Previous Generation Mattress

1976

Starting at

$3430⁷⁷

$4899⁰⁰

$1469 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner;Pain;Temperature;Toss and Turn;Toss and Turn
Pain
Bed Partner

Beautyrest BR800 Greenwood 13.5" Medium Pillow Top Mattress

1827

Starting at

$1500⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleep Number King Size

Choosing the right king size mattress is a decision that can redefine the way you experience rest and relaxation, especially during the chilly winter months when cozy comfort becomes even more essential. A sleep number king mattress offers a unique level of customization, allowing each sleeper to adjust the firmness and support to their exact preferences. This is particularly valuable for couples who may have different comfort needs, as each side of a king size bed sleep number can be tailored independently. Whether you’re winding down after a long day or seeking relief from aches and pains, the ability to personalize your sleep environment can make a noticeable difference in how refreshed you feel each morning. For families, the spaciousness of a king bed sleep number provides extra room for kids or pets to snuggle in on cold January mornings, turning bedtime into a warm, shared retreat from the winter chill. The versatility and adjustability of these mattresses make them a thoughtful gift for newlyweds, parents, or anyone embarking on a new chapter that calls for upgraded comfort.

When considering a mattress sleep number price, it’s important to think beyond the initial investment and reflect on the long-term benefits of improved sleep quality. Many shoppers find that the ability to fine-tune their support level leads to fewer restless nights and a more restorative sleep, which can have a positive impact on overall well-being and daily energy levels. The king size format is especially appealing for those who value ample space to stretch out or for households where the bed is a gathering place for quiet moments, story time, or weekend lounging. In the heart of winter, having a king size bed that adapts to your comfort needs can transform your bedroom into a sanctuary of warmth and relaxation. If you’re exploring options for a sleep number mattress firm enough for back support yet gentle enough for pressure relief, it helps to consider the unique features and materials that contribute to both durability and comfort. These beds are engineered to accommodate a range of sleep preferences, making them suitable for a variety of body types and sleeping positions. Whether you’re a side sleeper seeking plush cushioning or a back sleeper needing extra support, the adaptability of a sleep number king mattress ensures your needs are met night after night.

As you browse through options, keep in mind the practical aspects of upgrading to a king size bed sleep number, such as room dimensions, bedding compatibility, and delivery logistics. The spaciousness of a king bed not only enhances comfort but also adds a sense of luxury and tranquility to your bedroom décor. During the winter season, layering your adjustable mattress with soft flannel sheets and a thick duvet can create an inviting space that beckons you to unwind and recharge. For those considering a significant sleep upgrade or searching for a memorable gift, the thoughtful design and customizable features of a sleep number mattress make it a standout choice. If you’re ready to explore more about these versatile beds and discover the right fit for your home, visit our King Size Sleep Number Bed page for additional details and inspiration. Investing in a king size adjustable mattress is more than a purchase—it’s a step toward creating a restful haven tailored to your unique comfort needs, season after season.