Black Friday King Memory Foam Mattress Sale

Shop Black Friday king memory foam mattresses to find a spacious sleep surface with the pressure-relieving feel memory foam is known for. Compare available king-size mattresses by comfort, construction and brand to find an option that fits your sleep preferences and bedroom.

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1467

Starting at

$1999⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Estate 14.5" Firm Mattress

1865

Starting at

$2899⁰⁰

$3099⁰⁰

$200 OFF

Firm Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set.

Nectar Classic 12" Firm Memory Foam Mattress

245

Starting at

$899⁰⁰

$1399⁰⁰

$500 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Stearns & Foster Studio 14" Medium Mattress

1393

Starting at

$2299⁰⁰

$2499⁰⁰

$200 OFF

Medium Comfort, best for

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

Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress

989

Starting at

$1449⁹⁹

$1999⁹⁹

$550 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Pain
Toss and Turn
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Studio 14.5" Medium Euro Pillow Top Mattress

151

Starting at

$2499⁰⁰

$2699⁰⁰

$200 OFF

Medium Comfort, best for

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

Stearns & Foster Estate 15" Firm Euro Pillow Top Mattress

2818

Starting at

$3099⁰⁰

$3299⁰⁰

$200 OFF

Firm Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set.

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

1832

Starting at

$4099⁰⁰

$4499⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set.

Stearns & Foster Estate 13.5" Extra Firm Mattress

1092

Starting at

$2899⁰⁰

$3099⁰⁰

$200 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 Instant Gift⁴ with purchase of a mattress set.

Stearns & Foster Estate 14.5" Medium Mattress

704

Starting at

$2499⁰⁰

$2699⁰⁰

$200 OFF

Medium Comfort, best for

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

$300 Instant Gift⁴ with purchase of a mattress set.

Stearns & Foster Reserve 17" Firm Euro Pillow Top Mattress

700

Starting at

$5399⁰⁰

$6199⁰⁰

$800 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

$300 Instant Gift⁴ with purchase of a mattress set.

Sleepy's By Sealy Hybrid HD Premium Mattress

441

Starting at

$1699⁹⁹

$1999⁹⁹

$300 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Sleep Excellence Firm Mattress

279

Starting at

$1699⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Toss and Turn
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sierra Sleep By Ashley Chime 8" Memory Foam Mattress

142

Starting at

$449⁹⁹

$1249⁹⁹

$800 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Toss and Turn

Kingsdown Wesley 15.5" Firm Mattress

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 Hybrid Series Four 16" Firm Apex Top Mattress

Starting at

$5899⁰⁰

$6599⁰⁰

$700 OFF

Firm Comfort,

Pain
Bed Partner
Temperature
Toss and Turn

$300 ⁶ adjustable base instant gift with purchase.

Black Friday king memory foam mattresses bring together a roomy sleep surface and the close, contouring feel that makes memory foam distinctive. A standard king mattress measures 76 inches wide by 80 inches long, giving two adults space to settle into their preferred positions without sharing every inch of the bed. That extra width can be especially welcome when one person sleeps curled on their side and the other stretches out, or when partners prefer a little space between them. Memory foam responds to body heat and pressure, gradually cushioning areas such as the shoulders and hips rather than pushing back with the buoyant feel of springs. In an all-foam mattress, softer comfort layers typically sit above a firmer foam support core, with each layer contributing to how deeply the body settles and how supported it feels. Construction matters as much as the memory foam label: foam density, layer thickness and the firmness of the underlying core can make two mattresses feel noticeably different. Some have a slow, enveloping response, while others regain their shape more quickly when a sleeper changes position. Memory foam also tends to absorb movement, which may help limit disturbances when a partner turns over or gets out of bed. It does not eliminate every movement, and the bed frame can affect how stable the overall setup feels. For a primary bedroom shared by two people, a king offers room to enjoy that cushioning without feeling crowded. For someone sleeping alone, the appeal may be freedom to move from the center toward either side while keeping a familiar, consistent surface beneath them. Black Friday can be an occasion to revisit a bedroom setup that no longer fits daily life, whether that means replacing a cramped bed or choosing a sleep surface with a more body-contouring feel.

The right king memory foam mattress should balance cushioning with support for the person using it, rather than simply feel as soft as possible. Side sleepers often appreciate enough give for their shoulders and hips to settle comfortably, while back sleepers may prefer a surface that supports the lower back without allowing the pelvis to sink too deeply. Stomach sleepers generally need a firmer, more supportive feel through the midsection. These are starting points, not fixed rules: body weight, shape and personal preference all influence how a mattress feels. A lighter sleeper may experience a particular surface as firm, while a heavier sleeper may sink farther into the same comfort layers. Partners with different preferences may find a middle-ground feel comfortable, but firmness labels alone cannot predict that fit. When evaluating a mattress in person, spend time in the positions used at home rather than judging it only by sitting on the edge. Notice whether the shoulder feels compressed, whether the hips settle noticeably below the torso and whether turning over takes more effort than expected. Edge support deserves attention, too, especially for someone who sleeps near the perimeter or sits at the side while getting dressed. All-foam edges can compress under concentrated weight, although their construction varies. For people who tend to feel warm in bed, breathable covers, ventilated foam and gel-infused comfort layers are features worth understanding. None guarantees a particular sleep temperature; bedding, room conditions and individual comfort needs also play a role. A thick topper or heavily padded protector can change both the surface feel and how readily heat escapes. Mattress height is another practical detail. A tall mattress on a high foundation may make getting into bed awkward, while a low setup may make standing up less comfortable. Considering the combined height of the frame, foundation and mattress helps keep a spacious king bed comfortable to use throughout the day as well as at night.

A king mattress needs a bedroom and support system that can accommodate its size, not just a clear space matching its measurements. Allow for the frame’s full footprint, room to open dresser drawers and enough walking space beside the bed to change sheets without squeezing against a wall. Measure doorways, stair turns and narrow hallways before arranging delivery, and remember that even a compressed Mattress in a Box needs space to unpack and expand according to its instructions. If a king would dominate a smaller bedroom, Black Friday full memory foam mattresses offer a related size to consider; a standard full measures 54 inches wide by 75 inches long and generally gives one adult more practical room than two. For a king setup, use a foundation or platform that meets the mattress manufacturer’s requirements, including any specified slat spacing and center support. Compatibility with an adjustable base should also be confirmed rather than assumed. Proper support helps the mattress perform as intended and limits unnecessary stress on its foam layers. Day-to-day care starts with a well-fitting protector and sheets with pockets deep enough for the mattress height. Follow the care label for cleaning, address spills promptly and avoid soaking the foam, which can be difficult to dry thoroughly. Rotate the mattress only as directed, and do not flip a one-sided design unless the manufacturer specifically allows it. Durability depends on foam quality, construction, support and use; greater thickness alone does not establish a longer useful life. Higher-density memory foam can be more resistant to wear, but density is not the same as firmness. Over time, lasting impressions, uneven support or a noticeable change in comfort may signal that the mattress needs attention. A thoughtfully fitted king memory foam mattress brings more than extra width to a bedroom: it pairs space to stretch out with cushioning suited to the sleepers, a supportive base and care habits that help preserve its feel.

What is a memory foam mattress? + -

A memory foam mattress features foam layers designed to contour to the body and provide a supportive, pressure-relieving feel. The construction may include different foam densities and comfort layers depending on the design.

What should I look for in a Black Friday king memory foam mattress? + -

Consider the mattress's firmness, foam construction, comfort layers, cooling features and overall feel. Comparing these details can help you choose a mattress that suits your sleep preferences.

Are king memory foam mattresses available in different firmness levels? + -

Yes. King memory foam mattresses can range from plush to firm, with medium and medium-firm options also available. Your preferred sleep position and comfort preference can help guide your selection.

How do I care for a king memory foam mattress? + -

Use a compatible mattress protector, rotate the mattress when recommended by the manufacturer and follow the care instructions provided with your mattress. Keeping the sleep surface clean can also help maintain its condition.

How can I compare king memory foam mattresses during Black Friday? + -

Review each mattress's foam layers, firmness, cooling design, foundation requirements and included features. Reading product details carefully makes it easier to compare options and find the right fit for your bedroom.