Up to -20% Free Shipping & Extended Holiday Returns

Performance Pillow Covers

Dual Temperature Regulation Technologies Zips Over Any Pillow 2-Pack Of Pillow Covers

Upgrade your pillows with our Performance Pillow Covers: ultralight, breathable, and NASA-engineered for cool comfort all night long.

 

- 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. Certification Number: 05.0.9235

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

- Zippered enclosure

Standard - 21” x 29”
King - 21” 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 these from the dryer immediately.

Free Shipping: All U.S. orders are shipped right to your door, free of charge. Orders are typically shipped within 24 business hours.

Extended Holiday Risk Free Trial: Sleep on it, wash it, and really put it to the test until February 28th, 2026! If you don’t love your new bedding, just return it for a full refund. No questions asked!

Price Matches: Buy any Slumber Cloud item now. If it goes on a deeper sale within the next 60 days, just let us know and we'll refund the difference.

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

Performance Pillow Covers
On Sale from $47.20
Why You'll Love It:
Keep your head cool and comfortable all night long.

Dual Temperature Regulating Technologies

Designed with NASA's proactive Outlast® technology and Tencel®'s reactive moisture-wicking, ensuring effective dual temperature regulation.

Transform Your Existing Pillow

Enhance your favorite pillow with Performance Pillow Covers for added cooling comfort without replacing it.

Lab Tested Quality

Performance Pillow Cover: lab-tested fabric with 20,000+ abrasion test passes for guaranteed quality and durability.
Performance Pillow Covers
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.

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%.
Slumber Cloud icon of a sleep mask.

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%.
"Coolest material I’ve used and I like the zippered pillow cases"
- Nicholas B.
"The quality of these covers is amazing! What my husband and I love most is they keep your pillow cool all night long!The quality of these covers is amazing! What my husband and I love most is they keep your pillow cool all night long!"
- Jolene C.

Compare Our Products

Find the perfect solution for your needs

Performance Pillow Covers

Performance Pillow Covers

Outlast® + TENCEL™ lyocell

Dual Technologies
Moisture-Wicking
Airy, one layer of Outlast® coated lyocell.
Core Pillow Covers

Core Pillow Covers

Outlast® + Cooling Cotton

Cooling Cotton
Durable
Structured, outer cover paired with a lining fabric.
Performance Pillow Covers Core Pillow Covers
Quantity
How many are included
2 pillow covers per pack Choose from 1, 2, or 4 packs
Zippered Enclosure
Yes Yes
Technology
Outlast® technology + moisture-wicking lyocell 2 layers of Outlast® technology
Outlast® PCM Technology
Our Products

Outlast® PCM Technology

Proactive temperature management

Balances fluctuations in temperature
Phase change Materials
Moisture-Wicking Fabrics
Brands Like Buffy & Cozy Earth

Moisture-Wicking Fabrics

Reactive Cooling

Works after sweat is produced
Bamboo, Eucalyptus, & Lyocell
Traditional Fabrics
Brands Like Parachute & Boll & Branch

Traditional Fabrics

Traps Heat & Moisture

Can cause overheating
Variety of weaves & hand feel
Us Moisture-Wicking Fabrics Traditional Fabrics
Prevents Sweat Build-Up
Manages Hot & Cold Sleepers' Needs
Cool To The Touch
Exceptional Moderate Poor

FAQs

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.

Over 30,000 happy sleepers have spoken

We've helped over 30,000 sleepers unlock their best rest yet. See why customers and the press are calling our products a dream come true. Read all reviews

These sheets and duvet cover are so comfy and cozy! They really do keep me cooler at nights too; which I've been fighting with my entire life - I'm an overheater! I already recommended them to my best friend.
— Kristi M.
Perfect for California Summer! I love the lightweight and how well it regulates heat, so that we are not hot nor cold. It is perfection. I was hesitant because of the cost but glad that I decided to purchase it
— Esther B.
I have bought countless pillows, new bed, different positions, tried couch, bought new couch. Got this ultra cool pillow, so soft, literally feels like sleeping on a nice cool cloud. Slept the full night, first full night in over a year.
— Sagar J.
"For truly hot sleepers, leave it to NASA engineering to figure out a way to help you finally stay cool at night."
Real Simple
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