King Extra Edge Support Mattresses

Discover the perfect blend of space and stability with king extra edge support mattresses, designed to elevate your sleeping experience. These king-sized mattresses offer an expansive sleep surface, ideal for couples or anyone who appreciates the luxury of extra room. Enhanced edge support ensures a consistent feel across the entire mattress, allowing you to maximize every inch without compromising comfort. Whether you're stretching out for a restful night's sleep or enjoying a lazy morning in bed, these mattresses provide the support you need to wake up refreshed and ready to take on the day.

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Beautyrest Silver BRS900 11.75" Extra Firm Mattress

2635

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)

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1455

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)

Stearns & Foster Lux Estate Elite 16" Medium Euro Pillow Top Mattress

505

Starting at

$4599⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

347

Starting at

$690⁹⁹

$1380⁹⁹

$690 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

Sealy Posturepedic Plus Hybrid High Point 14" Plush Mattress

4485

Starting at

$1450⁷⁷

$2899⁰⁰

$1449 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

Sealy Posturepedic Plus Hybrid High Point 14" Firm Mattress

3763

Starting at

$1450⁷⁷

$2899⁰⁰

$1449 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Purple RestorePlus 13" Soft Hybrid Mattress

1640

Starting at

$3699⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

Purple RestorePlus 13" Firm Hybrid Mattress

1634

Starting at

$3699⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Beautyrest Black Series Three 15" Firm Mattress

1339

Starting at

$4299⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress

690

Starting at

$2000⁹⁹

Extra Firm Comfort, best for

Back;Stomach Sleepers
Pain
Toss and Turn
Pain

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

Purple RestorePlus Cool Touch 13" Hybrid Mattress

614

Starting at

$4095⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Beautyrest PressureSmart 2.0 Extra Firm 13.5" Mattress

1540

Starting at

$1920⁹⁹

$2900⁹⁹

$980 OFF

Extra Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature
Bed Partner

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Beautyrest PressureSmart 2.0 Lux Firm Pillow Top 16.25" Mattress

1004

Starting at

$3250⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature
Bed Partner

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Stearns & Foster Estate 13.5" Extra Firm Mattress

631

Starting at

$2999⁰⁰

Extra Firm Comfort, best for

Back;Stomach Sleepers
Bed Partner
Pain
Temperature

Receive $300 Instant Gift⁴ with purchase.

Sealy Posturepedic Elite Hybrid High Point II 14" Medium Mattress

436

Starting at

$2999⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Beautyrest Black Series One 13.5" Extra Firm Mattress

409

Starting at

$2599⁰⁰

Extra Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Purple RejuvenatePremier 18.5" Mattress

302

Starting at

$8499⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Beautyrest Black Series Three 14.25" Extra Firm Mattress

189

Starting at

$4299⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Sealy Posturepedic Elite Hybrid High Point II 14" Soft Mattress

179

Starting at

$2999⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Beautyrest Black Series Three 16.5" Firm Pillow Top Mattress

177

Starting at

$4699⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Sealy Posturepedic Elite Hybrid High Point II 14" Firm Mattress

156

Starting at

$2999⁰⁰

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Beautyrest Black Hybrid KX-Class 15" Firm Mattress

142

Starting at

$5199⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Sealy Posturepedic Elite Albany II 14" Firm Mattress

141

Starting at

$2199⁰⁰

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sealy Posturepedic Elite Brenham II 15" Medium Mattress

129

Starting at

$2499⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Allergies

Receive $200 Instant Gift⁴ with purchase.

Sleepy's By Sealy Hybrid HD Premium Mattress

Starting at

$3000⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Toss and Turn
Temperature

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

Beautyrest Black Hybrid Series One 12.5" Firm Mattress

Starting at

$2599⁰⁰

Firm Comfort,

Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

King Extra Edge Support Mattresses

Choosing a king mattress with extra edge support is an investment in both comfort and practicality, especially for couples, families, or anyone who values a spacious sleep surface. These mattresses are designed with reinforced perimeters, allowing every inch of the bed to feel stable and supportive—even right up to the edge. This feature becomes particularly important in a king size, where the vast surface area is often shared not just by partners, but sometimes by children or pets who join the bed for early morning cuddles or story time. During the summer months, when nights can be warm and restless, having a sturdy edge means you can stretch out to find the coolest spot without worrying about sagging or sliding off. Whether you’re sitting on the edge to tie your shoes, reading a book before bed, or simply sprawling out after a long day, the enhanced edge support provides a sense of security and durability that standard mattresses may not offer.

King extra edge support mattresses are an excellent choice for guest rooms, master bedrooms, or even as a thoughtful gift for newlyweds setting up their first home together. The added stability at the edges is especially beneficial for older adults or anyone with mobility concerns, as it makes getting in and out of bed smoother and more comfortable. If you’ve ever experienced the frustration of a mattress that dips or collapses when you sit near the edge, you’ll appreciate the difference a reinforced perimeter can make. These mattresses are also ideal for those who entertain overnight guests or have children who love to climb into bed for weekend movie marathons. Picture a summer evening, windows open to let in a gentle breeze, as your family gathers on a king mattress that feels as supportive at the edges as it does in the center—everyone has enough space, and the mattress holds its shape beautifully, night after night. For those who prioritize both ample room and lasting support, exploring the full range of King Advanced Support Mattresses can help you find the perfect fit for your needs.

When considering a king mattress with extra edge support, it’s important to think about your lifestyle and sleep habits. Do you need a mattress that will stand up to years of use from a busy household, or are you looking for something that will provide a luxurious, hotel-like experience every night? With reinforced edges, you can maximize the usable space on your mattress, making it easier to share with a partner without feeling crowded, or to simply enjoy the freedom to move and stretch as you please. The peace of mind that comes with knowing your mattress is built to last—resisting sagging, maintaining its shape, and providing consistent support—can make all the difference in your nightly routine. Whether you’re upgrading for the summer season or preparing a guest space for visiting friends and family, a king mattress with extra edge support offers the versatility, comfort, and durability to accommodate a wide range of needs and preferences, helping you create a sleep environment that feels truly inviting and dependable.