King Size Cooling Mattress Cover

Find a King Size Cooling Mattress Cover to refresh your sleep space and complement your existing bedding. Explore options in a range of materials, styles and price points to find a comfortable fit for your king size mattress and nighttime routine.

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Tempur-Pedic TEMPUR-Protect Breeze Mattress Protector

808

Starting at

$329⁰⁰

Sleepy's 3" Gel Memory Foam Mattress Topper

398

Starting at

$269⁹⁹

Medium Comfort,

Temperature

Bedgear Dri-Tec Mattress Protector

152

Starting at

$189⁹⁹

Temperature
Allergies

Bedgear Ver-Tex Performance Mattress Protector

165

Starting at

$299⁹⁹

Temperature

Tempur-Pedic TEMPUR-Cloud Mattress Topper

671

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-AdaptMattress Topper

8528

Starting at

$409⁰⁰

Medium Comfort,

Temperature
Allergies

Purple RestorePlus Cool Touch 13" Hybrid Mattress

1013

Starting at

$3900⁰⁰

$4699⁰⁰

$799 OFF

Medium Comfort, best for

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

$300 ^◇ adjustable base instant gift with purchase.

Purple Restore Cool Touch 11.5" Hybrid Mattress

792

Starting at

$3000⁰⁰

$3699⁰⁰

$699 OFF

Medium Comfort, best for

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

$300 ^◇ adjustable base instant gift with purchase.

Rest Evercool Bedding Bundle

Starting at

$289⁰⁰

Temperature
Allergies

Tulo Copper 10" Medium Hybrid Mattress

Starting at

$999⁹⁹

Medium Comfort, best for

Side, Back, Stomach Sleepers
Pain
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Signature TOTAL DEFENSE Mattress Protector

5755

Starting at

$129⁹⁹

Temperature
Allergies

Save $100 when you bundle¹⁰.

Sleepy's Deluxe Cool Stretch Sheet Set

Starting at

$169⁹⁹

Temperature
Allergies

Save $150 when you bundle¹⁰.

Tempur-Pedic TEMPUR-Breeze Cooling Sheet Set

196

Starting at

$469⁰⁰

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1816

Starting at

$1999⁹⁹

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Bedgear StretchWick Mattress Protector

158

Starting at

$129⁹⁹

Temperature
Allergies

A king size cooling mattress cover can help create a more comfortable sleep environment by adding breathable, moisture-wicking protection between you and your mattress. Designed for standard king mattresses, these cooling mattress covers and king mattress protectors may feature materials such as cotton, Tencel™, bamboo-derived fibers or specialized cooling fabrics that promote airflow and help release excess heat. A breathable king size mattress cover is especially useful for hot sleepers, couples with different temperature preferences and anyone who wants to protect their mattress from sweat, spills, dust and everyday wear without adding excessive warmth. Look for a cover with a smooth, quiet surface, secure elastic edges and a deep-pocket design that fits your mattress height. The best king size cooling mattress cover balances temperature regulation, mattress protection and easy care. A lightweight cooling mattress pad can add a layer of cushioning, while a waterproof king mattress protector helps guard against accidental spills and stains. For a secure fit, measure the mattress depth and choose a king size cover with stretchable sides that stay in place as you move during the night. Machine-washable construction makes regular cleaning simple, helping maintain a fresh, comfortable sleep surface. Pairing a cooling mattress cover with breathable sheets, a temperature-regulating comforter and a supportive king mattress can help you get better zzz's in every season.

What materials are commonly used in a cooling mattress cover? + -

Cooling mattress covers may use breathable cotton, moisture-wicking polyester, bamboo-derived rayon or specialty cooling fibers. Check the product details to learn which materials are included.

How should I care for a cooling mattress cover? + -

Follow the care instructions on the product label. Many covers can be machine washed and dried, but recommended settings vary by material and construction.

Does a cooling mattress cover change the feel of a mattress? + -

A mattress cover may slightly change the surface feel depending on its fabric, quilting and thickness. Choose a low-profile cover for a closer feel to the original mattress surface.

Can I use a cooling mattress cover with other bedding layers? + -

Yes, a cooling mattress cover can typically be used beneath fitted sheets, mattress pads and other bedding layers. Place it directly over the mattress unless the care instructions say otherwise.

What features should I look for in a cooling mattress cover? + -

Consider breathable materials, moisture-wicking fabric, a secure elastic edge, quilted construction and easy-care instructions. The best choice depends on your preferred feel and bedding routine.