8 Inch King Mattresses

Discover the perfect balance of comfort and support with our selection of 8 inch king mattresses. Designed to fit spacious bedrooms and provide ample room for restful sleep, these mattresses offer a versatile option for couples or anyone who loves extra space. Explore a variety of styles and materials to find an 8 inch king mattress that suits your sleep preferences and complements your bedroom décor. Enjoy a restful night’s sleep on a mattress that brings together quality and value for your home.

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Sierra Sleep By Ashley Peak 2.0 8" Memory Foam Mattress

Starting at

$430⁹⁹

$1150⁹⁹

$720 OFF

Medium Comfort, best for

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

Sleepy's Basic Innerspring Firm Mattress

8559

Starting at

$220⁹⁹

Firm Comfort, best for

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

Tulo Bamboo 8" Medium Green Tea Memory Foam Mattress

5471

Starting at

$293⁹⁹

$810⁹⁹

$517 OFF

Medium Comfort, best for

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

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

Purple Original Mattress

30160

Starting at

$1499⁰⁰

$1999⁰⁰

$500 OFF

Medium Comfort, best for

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

Sierra Sleep By Ashley Chime 8" Memory Foam Mattress

141

Starting at

$1250⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sierra Sleep By Ashley Peak 2.0 8" Hybrid Mattress

Starting at

$1150⁹⁹

Medium Comfort, best for

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

Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress

897

Starting at

$1300⁹⁹

$2000⁹⁹

$700 OFF

Extra Firm Comfort, best for

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

Tulo Green Tea 8" Medium Mattress

Starting at

$1070⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basic Foam Mattress

1392

Starting at

$250⁹⁹

Firm Comfort, best for

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

Sierra Sleep By Ashley Chime 8" Mattress

181

Starting at

$340⁹⁹

$1250⁹⁹

$910 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Toss and Turn

Kingsdown Crown Imperial 16" Firm Euro Top Mattress

113

Starting at

$5299⁰⁰

$6899⁰⁰

$1600 OFF

Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Kingsdown Crown Imperial 15" Firm Mattress

Starting at

$4599⁰⁰

$5999⁰⁰

$1400 OFF

Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Posturepedic Plus Norman II 15" Firm Euro Top Mattress

Starting at

$1599⁰⁰

$2099⁰⁰

$500 OFF

Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basic Memory Foam Firm Mattress

3035

Starting at

$300⁷⁷

$1000⁹⁹

$700 OFF

Firm Comfort, best for

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

Sleepy's Rest Firm 2.0 Innerspring Mattress

6915

Starting at

$400⁹⁹

$1250⁹⁹

$850 OFF

Firm Comfort, best for

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

Limited time deal ends Monday

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1389

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

Tulo Bamboo 10" Medium Green Tea Memory Foam Mattress

5471

Starting at

$338⁹⁹

$890⁹⁹

$552 OFF

Medium Comfort, best for

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

Beautyrest BR800 12" Plush Euro Top Mattress

698

Starting at

$520⁹⁹

$1400⁹⁹

$880 OFF

Plush Comfort, best for

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

Sleepy's By Sealy Premium Memory Foam Mattress

169

Starting at

$1150⁹⁹

$2300⁹⁹

$1150 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 12" Plush Mattress

1091

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

Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress

1610

Starting at

$576⁹⁹

$1200⁹⁹

$624 OFF

Plush Comfort, best for

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

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Firm Mattress

4693

Starting at

$3899⁰⁰

$4099⁰⁰

$200 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain;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-ProAdapt 2.0 12" Medium Mattress

3694

Starting at

$3899⁰⁰

$4099⁰⁰

$200 OFF

Medium Comfort, best for

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

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

Purple RestorePlus 13" Firm Hybrid Mattress

1666

Starting at

$3299⁰⁰

$3999⁰⁰

$700 OFF

Firm Comfort, best for

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

8 Inch King Mattresses

Choosing an 8 inch king mattress is a thoughtful decision for anyone seeking a balance of comfort, support, and practicality in a spacious sleep environment. These mattresses are especially well-suited for those who prefer a lower profile bed, making them an excellent choice for guest rooms, vacation homes, or primary bedrooms where a sleek, minimalist look is desired. The 8 inch height offers a streamlined silhouette that can make a room feel more open, while still providing ample comfort for a restful night’s sleep. For couples or individuals who appreciate extra room to stretch out, a king size mattress at this thickness can be ideal, offering both the width and support necessary for undisturbed slumber. Parents transitioning their children into larger beds, or hosts outfitting a guest suite for visiting family during the winter months, often find that an 8 inch king mattress fits the bill—providing a cozy, inviting sleep surface without overwhelming the space. During January’s chilly nights, layering this mattress with your favorite flannel sheets and a plush comforter can transform your bedroom into a warm, welcoming retreat.

When considering an 8 inch king mattress, it’s important to think about the unique needs of the sleeper and the intended use of the mattress. If you’re furnishing a master bedroom, you might be seeking a mattress that supports a range of sleep positions and accommodates the movement of two people without disturbance. For those with mobility concerns or children who might climb into bed for story time, the lower profile of an 8 inch mattress makes getting in and out of bed easier and safer. This thickness also pairs well with a variety of bed frames, including platform beds and adjustable bases, offering flexibility in bedroom design. As a housewarming or wedding gift, an 8 inch king mattress can be a practical and thoughtful gesture—one that encourages rest and relaxation in a new home. For those who enjoy rearranging their space or moving frequently, the lighter weight of an 8 inch mattress can make setup and transportation much more manageable compared to taller, heavier options. If you’re looking for a bit more plushness or additional support, you might also be interested in exploring 11 Inch King Mattresses, which offer a slightly higher profile and enhanced comfort layers.

No matter how you plan to use it, an 8 inch king mattress can serve as the foundation for countless restful nights, lazy weekend mornings, and cherished moments with loved ones. Picture sinking into the gentle support after a long day, the mattress contouring to your shape as you unwind with a good book or catch up on your favorite shows. For families, it’s the perfect spot for weekend breakfasts in bed or building blanket forts with the kids. In guest rooms, it offers visitors a comfortable, inviting place to recharge, making their stay feel special and memorable. Whether you’re outfitting a city apartment or a cozy cabin, the versatility and comfort of an 8 inch king mattress make it a reliable choice for a wide range of lifestyles and spaces. With the right bedding and accessories, you can create a sleep sanctuary that reflects your personal style and meets your unique needs, ensuring that every night is restful, restorative, and just a little bit luxurious.