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

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.

Cooling FabricMatches The UltraCool ComforterMachine Washable
Select Color
White
Select Size
$34.00
Free Gift With Purchase
The Slumber Cloud Silk Pillowcase with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night
FREE $59.00
Silk Sleep Mask
Unlock a Free Silk Sleep Mask with any purchase of $300+. Free gift will automatically be added to qualified carts.

- Luxuriously silky soft and stretchy cooling nylon fabric

- Zippered enclosure

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

- Zippered enclosure

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.

Standard - 20” x 27”
King - 20” x 37”

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!

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 $229.00
UltraCool Comforter
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.

Why It's Different

Most companies that claim to have cooling, sweat-wicking bedding only attempt to manage temperature once you've already become uncomfortable. Slumber Cloud is doing something different.

Slumber Cloud Bedding utilizes Outlast® technology for a proactive, not reactive, approach to temperature regulation. Outlast® technology regulates heat to stop moisture from developing in the first place, instead of attempting to wick away sweat that has already developed.

Not too hot…not too cool…just right.

FAQ

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.