King Advanced Support Mattresses

King Advanced Support Mattresses offer a spacious sleep surface for those seeking added support in a king size. Explore options to find the right fit for your bedroom, sleep preferences and budget, and make it easier to get better zzz’s.

Beautyrest Black Series Two 14.25" Firm Mattress

365

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 13.5" Extra Firm Mattress

722

Starting at

$2499⁰⁰

$2899⁰⁰

$400 OFF

Extra Firm Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 16.75" Plush Pillow Top Mattress

1526

Starting at

$4599⁰⁰

$5199⁰⁰

$600 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 16.25" Medium Pillow Top Mattress

489

Starting at

$4599⁰⁰

$5199⁰⁰

$600 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 16.5" Firm Pillow Top Mattress

306

Starting at

$4599⁰⁰

$5199⁰⁰

$600 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Two 15.25" Plush Mattress

239

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 15" Firm Mattress

2316

Starting at

$4199⁰⁰

$4799⁰⁰

$600 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Four 17.25" Plush Summit Pillow Top Mattress

315

Starting at

$5899⁰⁰

$6599⁰⁰

$700 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Firm Mattress

1500

Starting at

$5299⁰⁰

$5599⁰⁰

$300 OFF

Firm Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set + Calm app 3-month free trial.

Beautyrest Black Series One 14.5" Plush Pillow Top Mattress

288

Starting at

$3099⁰⁰

$3499⁰⁰

$400 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14" Plush Mattress

253

Starting at

$2799⁰⁰

$3199⁰⁰

$400 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Purple Rejuvenate Royale Duke Mattress

Starting at

$7099⁰⁰

$7599⁰⁰

$500 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 adjustable base instant gift with purchase.

Beautyrest Black Series Three 15.25" Medium Mattress

2394

Starting at

$4199⁰⁰

$4799⁰⁰

$600 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 14.25" Extra Firm Mattress

299

Starting at

$4199⁰⁰

$4799⁰⁰

$600 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14.25" Firm Pillow Top Mattress

261

Starting at

$3099⁰⁰

$3499⁰⁰

$400 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Hybrid Series Two 14.5" Medium Apex Top Mattress

Starting at

$3999⁰⁰

$4399⁰⁰

$400 OFF

Medium Comfort,

Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14.75" Medium Pillow Top Mattress

338

Starting at

$3099⁰⁰

$3499⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Dreamcloud PressureSmart Technology Extra Firm Pillow Top Mattress

414

Starting at

$2649⁰⁰

Extra Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Black Series Four 17.5" Medium Summit Pillow Top Mattress

626

Starting at

$5899⁰⁰

$6599⁰⁰

$700 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14.25" Medium Mattress

455

Starting at

$2799⁰⁰

$3199⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Firm Mattress

5214

Starting at

$3999⁰⁰

$4199⁰⁰

$200 OFF

Firm Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set + Calm app 3-month free trial.

Beautyrest Black Series Two 15.5" Medium Mattress

536

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Sealy Posturepedic Pro Lacey II 14" Firm Mattress

Starting at

$1849⁰⁰

$2399⁰⁰

$550 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Posturepedic Elite Hybrid High Point II 14" Firm Mattress

808

Starting at

$2899⁰⁰

$3099⁰⁰

$200 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

$200 Instant Gift⁴ with purchase of a mattress set.

Sealy Posturepedic Elite Hybrid Brenham II 14" Firm Mattress

Starting at

$2699⁰⁰

$2799⁰⁰

$100 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

$200 Instant Gift⁴ with purchase of a mattress set.

Sealy Posturepedic Elite Albany II 14" Firm Mattress

916

Starting at

$2199⁰⁰

$2299⁰⁰

$100 OFF

Firm Comfort, best for

Back Sleepers
Pain
Temperature
Allergies
Bed Partner
Toss and Turn

$200 Instant Gift⁴ with purchase of a mattress set.

King advanced support mattresses are designed for sleepers who want a spacious sleep surface along with carefully engineered support. A standard king mattress measures 76 inches wide by 80 inches long, giving couples room to stretch out and helping reduce the feeling of being crowded during the night. That extra space can also be useful for guest rooms, growing families who occasionally share the bed and anyone who likes to change positions without disturbing a partner. Advanced support may come from a combination of high-density foam, individually wrapped coils, reinforced edges or strategically arranged comfort layers. Some designs include targeted lumbar zones with firmer support through the center third of the mattress, helping keep the hips from sinking too deeply while the shoulders and legs receive appropriate cushioning. Others use pressure-relieving memory foam that contours around the body to soften contact at the shoulders, hips and knees. A well-constructed support system should feel stable without being rigid, allowing the mattress to respond to the body instead of creating a flat, unyielding surface. Edge support is another useful feature, particularly in a king size. A reinforced perimeter can make it easier to sit down, stand up or get dressed at the side of the bed, while also helping you use more of the mattress’s full width. For couples, individually wrapped coils and dense foam can limit motion transfer, so a partner’s late-night movement is less likely to travel across the sleep surface. These features are especially helpful when one person goes to bed earlier, wakes before dawn or shifts positions often. During warmer weather, breathable covers, ventilated foam and open coil designs may help promote airflow, while during cooler months, supportive comfort layers create a cozy place to settle in after a long day. The goal is balanced comfort: enough give to relieve pressure, enough structure to support natural alignment and enough durability for the mattress to remain dependable through nightly use.

Choosing among king advanced support mattresses starts with considering how you sleep and how the mattress feels beneath the areas that carry the most weight. Side sleepers often prefer a more cushioning comfort layer that allows the shoulders and hips to ease into the surface while the underlying support keeps the midsection from dipping too far. Back sleepers may appreciate a balanced feel with responsive support under the lower back and hips, combined with enough cushioning to avoid uncomfortable pressure along the spine. Stomach sleepers generally benefit from a more supportive surface that helps keep the torso from sinking, since excessive sagging can make the body feel out of balance. Combination sleepers may want responsive foam or coils that make it easier to turn without feeling stuck. Body weight, height and personal comfort preferences also affect the right choice, which is why firmness labels should be treated as a starting point rather than a guarantee. A mattress that feels plush to one person may feel medium to another, especially when two people share a bed. Couples with different preferences can look for a design that combines pressure relief with steady underlying support, or consider a split setup when each sleeper needs a different feel. Pay attention to the bed frame or foundation as well. A king mattress needs a properly sized, sturdy base with appropriate center support to help maintain its shape and performance. Before purchase, review the mattress dimensions, available trial or return terms, delivery details and care instructions. It is also useful to think beyond the first few minutes in a showroom or the initial night at home. Notice whether your shoulders, hips and lower back feel supported in your usual sleeping position, whether you can move comfortably and whether you feel stable near the edge. If you share the mattress, spend time lying beside one another to assess motion transfer and usable space. For shoppers who need a longer, narrower sleep surface, Advanced Support Cal King Mattresses may be worth comparing with standard king options, especially in rooms where the layout allows additional length.

An advanced support king mattress can be a thoughtful choice for a primary bedroom refresh, a new home, a guest room or a household preparing for more comfortable nights during a busy season. It may also make a practical housewarming, wedding or anniversary gift when the recipient has already expressed a need for better sleep, although mattress selection is personal and is often best made together. For a guest room, a supportive king surface gives visitors room to settle in comfortably, whether they are staying for a weekend or an extended visit. In a primary bedroom, the generous surface can create a calmer nighttime routine: reading under soft light, stretching out after a day on your feet or waking without immediately bumping into a partner. Pairing the mattress with a compatible foundation, breathable sheets and pillows that support each sleeper’s preferred position can help create a more complete sleep environment. Rotate the mattress only if the care instructions recommend it, keep the foundation properly supported and use a protector to guard against everyday spills, dust and wear. Mattress comfort can also change as the body changes, so reassess how the surface feels after moving homes, changing sleep positions or replacing an older bed. Advanced support does not mean a mattress must feel hard, nor does a softer surface automatically lack support. The most useful choice is one that keeps the body comfortably supported, reduces distracting movement and provides enough pressure relief for consistent rest. With the right fit, a king mattress can become the steady center of the bedroom—a broad, welcoming surface where the day winds down, sleep comes more easily and mornings begin with less stiffness and more room to breathe.

What are king advanced support mattresses? + -

King advanced support mattresses are designed with specialized support systems, comfort layers and reinforced construction features. They may include individually wrapped coils, zoned support, high-density foams or a combination of materials.

What materials are commonly used in king advanced support mattresses? + -

Common materials include memory foam, gel-infused foam, latex, quilted fabric, individually wrapped coils and high-density support foam. Each mattress may combine these materials differently to create its intended feel and construction.

How do I choose the right firmness for a king advanced support mattress? + -

Consider your preferred feel, usual sleep position and whether you enjoy a plush, medium or firm surface. Reviewing the mattress construction and comfort layers can also help you find a feel that matches your preferences.

Are king advanced support mattresses compatible with adjustable bases? + -

Many king advanced support mattresses are designed to work with adjustable bases, but compatibility can vary by construction. Check the mattress and base specifications before pairing them.

How should I care for a king advanced support mattress? + -

Use a supportive foundation, rotate the mattress if the manufacturer recommends it and protect the surface with a properly fitted mattress protector. Always follow the care instructions provided with your mattress.