Performance Pillow Covers

Transform your ordinary pillows into cool, comfortable ones with our innovative Performance Pillow Covers. Crafted with an ultralight and breathable construction, these covers are designed to stay cool without compromising the feel of your pillow underneath. Infused with NASA-engineered temperature-regulating technology and moisture-wicking fabric, you can enjoy a refreshing and comfortable sleep experience throughout the night. Say goodbye to restless nights and hello to better sleep with our Performance Pillow Covers.

- Ultra lightweight proprietary Tencel® based Outlast® lining fabric for dual heat management technologies

- Designed to be used underneath your pillowcase

- One set includes 2 pillow covers

- Oeko-Tex Standard 100 Certified Technology

- 100% Tencel® Lyocell top fabric with Outlast® technology coating

- 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 these from the dryer immediately.

Standard - 21” x 29”
King - 21” 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!

Why You'll Love It:

Keep your head cool and comfortable all night long.
Dual Temperature Regulating Technologies

Designed with a combination of two temperature-regulating technologies - proactive NASA-engineered Outlast® technology and the reactive moisture-wicking capabilities of lyocell Tencel®.

Transform Your Existing Pillow

If you have a pillow you already love – no sweat. The Performance Pillow Covers are designed to encase your ordinary pillows to add cooling performance.

Lab Tested Quality

The Performance Pillow Cover fabric has been lab tested for quality you can count on, with the fabric having 20,000+ passes in abrasion testing.

A man zipping up the Slumber Cloud Performance Pillow Cover with Outlast temperature regulation technology
A detailed view of the zipper on the Slumber Cloud Performance Pillow Cover with Outlast temperature regulation technology
A detailed view of the fabric on the Slumber Cloud Performance Pillow Cover with Outlast temperature regulation technology

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.


Not to be confused with pillowcases, this set of pillow covers are traditionally used underneath your pillowcases to keep your head cool and extend the lifetime of your pillows.

Yes, we want your bed to look nice and match the rest of your linens so we made sure the technology inside our pillow covers will still work even when used with a pillowcase.

The Performance Pillow Cover Set comes with two pillow covers. That means one for you and one to share with your partner (or don't share, we won’t judge).

Slumber Cloud products are designed to help manage heat and humidity build up. It is not an air conditioner with a set temperature degree, but it will react to your temperature all night long to reduce heat build up and manage temperature swings.