King Foam Mattress Topper

A King Foam Mattress Topper can complement your king mattress and help create a more inviting sleep space. Explore options for your bedroom and find the right fit for your comfort preferences, mattress setup and nightly routine.

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Tulo Gel Memory Foam Zoned Support Mattress Topper

122

Starting at

$80⁹⁹

$119⁹⁹

$39 OFF

Medium Comfort,

Temperature

Tempur-Pedic TEMPUR-AdaptMattress Topper

8510

Starting at

$279⁰⁰

$409⁰⁰

$130 OFF

Medium Comfort,

Temperature
Allergies

Sleepy's 3" Gel Memory Foam Mattress Topper

396

Starting at

$189⁹⁹

$269⁹⁹

$80 OFF

Medium Comfort,

Temperature

Tulo Bamboo 12" Medium Plush Green Tea Memory Foam Mattress

5555

Starting at

$429⁹⁹

$1019⁹⁹

$590 OFF

Medium Comfort, best for

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

Nectar Premier 13" Medium Memory Foam Mattress

486

Starting at

$1099⁰⁰

$1799⁰⁰

$700 OFF

Medium Comfort, best for

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

Nectar Classic 12" Firm Memory Foam Mattress

231

Starting at

$899⁰⁰

$1399⁰⁰

$500 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Nectar Luxe 14" Medium Memory Foam Mattress

238

Starting at

$1649⁰⁰

$2249⁰⁰

$600 OFF

Medium Comfort, best for

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

Tempur-Pedic TEMPUR-Cloud Mattress Topper

668

Starting at

$214⁰⁰

Medium Comfort,

Temperature
Allergies

Sleepy's 4" Reversible Gel Memory Foam Topper

Starting at

$199⁹⁹

$299⁹⁹

$100 OFF

Medium Comfort,

Temperature
Allergies

Tempur-Pedic TEMPUR-Adapt + Cooling Mattress Topper

4642

Starting at

$509⁰⁰

Medium Comfort,

Temperature
Allergies

Tulo Green Tea 12" Plush Mattress

Starting at

$459⁹⁹

$1399⁹⁹

$940 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Bedgear React Pro Mattress Topper

Starting at

$382⁴⁹

$449⁹⁹

$68 OFF

Medium Comfort,

Allergies
Temperature

Stearns & Foster Lux Hybrid Elite 14.5" Soft Mattress

Starting at

$3599⁰⁰

$4299⁰⁰

$700 OFF

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

Sleepy's Basic Memory Foam Firm Mattress

3213

Starting at

$299⁷⁷

$999⁹⁹

$700 OFF

Firm Comfort, best for

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

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1433

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

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

3631

Starting at

$2029⁷⁷

$2899⁰⁰

$869 OFF

Medium Comfort, best for

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

Tulo Bamboo 10" Medium Green Tea Memory Foam Mattress

5555

Starting at

$379⁹⁹

$889⁹⁹

$510 OFF

Medium Comfort, best for

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

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1810

Starting at

$859⁹⁹

$1999⁹⁹

$1140 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Bamboo 8" Medium Green Tea Memory Foam Mattress

5555

Starting at

$329⁹⁹

$809⁹⁹

$480 OFF

Medium Comfort, best for

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

Beautyrest BR800 12" Plush Euro Top Mattress

735

Starting at

$569⁹⁹

$1399⁹⁹

$830 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

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

981

Starting at

$4099⁰⁰

$4699⁰⁰

$600 OFF

Medium Comfort, best for

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

Receive $300 Instant Gift⁴ with purchase.

Sleepy's By Sealy Slumber Medium Mattress

175

Starting at

$709⁹⁹

$2299⁹⁹

$1590 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tulo Bamboo 6" Firm Green Tea Memory Foam Mattress

5558

Starting at

$729⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress

1610

Starting at

$599⁹⁹

$1199⁹⁹

$600 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Toss and Turn
Bed Partner

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Mattress

3858

Starting at

$3799⁰⁰

$4199⁰⁰

$400 OFF

Medium Comfort, best for

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

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

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Mattress

3651

Starting at

$2799⁰⁰

$2999⁰⁰

$200 OFF

Medium Comfort, best for

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

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

A king foam mattress topper is an easy way to refresh your sleep surface and add comfort to a king size mattress. Designed to fit most standard king beds, a king topper typically measures about 76 by 80 inches and provides extra cushioning without the cost of replacing your entire mattress. Memory foam and other supportive foam materials can help contour to your body, reduce pressure around the shoulders and hips, and create a more comfortable feel on a mattress that seems too firm. Choose a two- to three-inch king foam mattress topper for balanced cushioning or consider a thicker option for a more noticeable change in comfort and support. The best king foam mattress topper depends on your preferred sleep feel, sleeping position and temperature needs. Side sleepers may appreciate pressure-relieving memory foam, while back and stomach sleepers often prefer a responsive foam topper that provides support without allowing the body to sink too deeply. If you tend to sleep warm, look for a cooling king mattress topper with breathable materials, ventilated foam or a moisture-wicking cover. Before purchasing, confirm the topper’s dimensions, thickness, cover care instructions and compatibility with your existing mattress. A properly fitted king foam mattress topper can help extend the life of your mattress while making your bed feel more comfortable and inviting.

What is a king foam mattress topper made of? + -

King foam mattress toppers are commonly made with memory foam, polyfoam or latex foam. Each material has a different feel, so consider whether you prefer a contouring, responsive or more buoyant surface.

How thick should a king foam mattress topper be? + -

Foam mattress toppers are available in several thicknesses. A thinner topper provides a subtle feel change, while a thicker option creates a more noticeable layer between you and the mattress.

How do I choose the right firmness for a king foam mattress topper? + -

Choose a firmness based on your preferred sleep surface and the feel of your current mattress. A softer topper offers a plusher surface, while a firmer topper provides a more supportive feel.

How should I care for a king foam mattress topper? + -

Follow the care instructions provided with your topper. Many foam toppers have removable, washable covers, while the foam core may require spot cleaning and thorough air-drying.

Can I use a king foam mattress topper on any mattress? + -

A foam mattress topper can generally be placed on most clean, dry mattress surfaces. Make sure the mattress is in good condition and use a fitted sheet that accommodates the added height.