The UltraCool Pillowcase over a pillow in the White color way.
The UltraCool Pillowcase over a pillow in the Navy color way.
The UltraCool Pillowcase over a pillow in the Sand color way.
close up detail of the UltraCool pillowcase zipper
UltraCool Pillowcase
UltraCool Pillowcase
Free Shipping & 60 Night Risk Free Trial

UltraCool Pillowcase

Cooling Fabric Matches The UltraCool Comforter Machine Washable

Introducing the UltraCool Pillowcase for a cool, comfortable sleep. Featuring a silky smooth cooling nylon/spandex fabric for comfort. Simply zip over your existing pillow.

Select Color
White
Select Size
$34.00
Pairs well with..
The Slumber Cloud UltraCool Comforter takes the ClimaDry™ by Outlast and pairs it with an 89% cooling nylon and 11% spandex outer cover that mimics silk creating the silky smooth and soft to the touch hand feel.
From $239.00
UltraCool Comforter

- Luxuriously silky soft and stretchy cooling nylon fabric

- Zippered enclosure

- 155 gsm 89% Cooling Nylon 11% Spandex Jersey outer cover

- Zippered enclosure

Standard - 20” x 27”
King - 20” x 37”

Basic Care:
Machine wash cold water on a gentle cycle with a mild detergent and with like colors only. Do not use fabric softener. Only use non-chlorine bleach when needed. Tumble dry low heat until completely dry. Remove from dryer immediately. Do not dry clean. Do not iron.

Pro Tip:
Wash this every 1-2 weeks. Reduce wrinkles by removing this from the dryer immediately.

All U.S. orders are shipped right to your door, free of charge.

Sleep on it, wash it, and really put it to the test for 60 nights! If you don’t love your new bedding, just return it for a full refund. No questions asked!

*Final Sale items and colors are not eligible for return, exchange, or the 60 Night Trial Period.

UltraCool Pillowcase
From $34.00

Why You'll Love It:

A cooling pillowcase to keep your head cool and comfortable all night long.

Transform Your Existing Pillow

Enhance your favorite pillow with UltraCool Pillowcase for added cooling comfort.

Lab Proven Results

One of the highest Qmax values on the market (higher Qmax values = higher coolness feeling) - better than cotton, bamboo, silk, and lyocell.

Silky Soft Comfort

Featuring an 89% cooling nylon and 11% spandex fabric, the UltraCool Pillowcase is softer than silk.

A better night’s sleep because of science.

It’s a fabric designed for NASA spacesuits up where temperatures change by 500 degrees. We think it can handle your bedroom. Learn More

The Only NASA Bedding

Our bedding utilizes Outlast®, the world’s only textile technology to have received the Certified Space Technology™ quality mark by the renowned Space Foundation.

Reduces Sweat By 50%

Our bedding provides proactive heat and moisture management, clinically proven to reduce night sweats by up to 50%. *Outlast Humidity Sleep Study

Improves Deep Sleep By 20%

Our bedding adapts to the ideal temperature of both hot and cold sleepers, proven to decrease tossing & turning and increase sleep efficiency by 20%.*Outlast Heat Sleep Study

FAQs

The UltraCool Pillowcase comes with one pillowcase. Buy two so you won't fight with your partner over who gets the pillowcase!

Not to be confused with pillow covers, this is a pillowcase and designed to be slept on directly for maximum cooling benefits!

Yes! The UltraCool Pillowcase is made from the same fabric used in our award winning UltraCool Comforter.

The zipper closure and stretchy nature of the fabric means the pillowcase should fit most pillows and pillow styles.