The Slumber Cloud Core Pillow Covers with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night
The Slumber Cloud Core Pillow Covers with temperature regulation technology fitted on pillows
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A couple sleeping while using a Slumber Cloud Core Pillow Cover with temperature regulation technology
The Slumber Cloud Core Down Alternative Pillow made with temperature regulation technology
Up to -30% Free Shipping & 60 Night Risk Free Trial

Core Pillow Covers

Zips Over Any Pillow

Experience space-like comfort with our Pillow Covers, featuring Outlast® fabric for cool, adaptive sleep. Revolutionize your night's sleep today!

Product Comparison
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$68.60 $98.00you save $29.40

- Proprietary Outlast® lining fabric for maximum heat management and added comfort

- Zippered enclosure transforms your existing pillows into performance "cooling" pillows

- Designed to work even when used underneath your pillowcase

- OEKO-TEX® STANDARD 100 Certified Technology. Certification Number: 05.0.9235

- 300 thread count 40% Outlast® viscose / 60% cotton outer fabric

- 100% polyester non-woven lining fabric with Outlast® Technology coating

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. Tumble dry low heat until completely dry. Remove from the dryer immediately. Only use non-chlorine bleach when needed. Do not dry clean. Do not iron.

Pro Tip:
Pillow covers should be washed every 2 weeks. Do not iron, bleach or dry clean your pillow covers.

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.

Core Pillow Covers
On Sale from $34.30

Why You'll Love It:

Like mini spacesuits for your pillows.

No More Flipping To The Cool Side

Stay cool all night with our dual-layer Outlast® fabric pillow covers, perfect for hot sleepers to maintain optimal comfort.

Zippered Enclosure

Transform your pillows into "cooling" pillows effortlessly with our NASA-engineered cover for temperature control.

Protect Your Pillow

Extend your pillow's lifespan and simplify laundry with the Core Pillow Cover, adding an extra protective layer against wear and tear.

Slumber Cloud Pillow & Cover Comparison

Different solutions all designed with temperature regulation:
Core Pillow Cover

Zips on to pillow. Cooling cotton. Structured. Classic.

Performance Pillow Cover

Zips on to pillow. Airy + breathable. Dual technologies
UltraCool Pillow

Zips on to pillow. Airy + breathable. Dual technologies
A close up shot of the Slumber Cloud Core Down Alternative Pillow
A close up of the Slumber Cloud Performance Pillow Cover Set made with Outlast temperature regulation technology on a moisture wicking fabric
Detailed view of the outer fabric on the Slumber Cloud UltraCool Pillow

Pillow vs Pillow Cover Overview

Which one is right for me?

Pillow

Pillows should be replaced at least every year. Ideal for those who need to replace their existing pillow and need temperature regulation performance.

Pillow Cover

Ideal if you have a pillow you love, but need it to sleep cooler. Pillow Covers extend the lifetime of your pillow and can be paird with our pillows for extra temperature regulation performance.

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

Us vs Them

Slumber Cloud Cooling Bedding
Other "Cooling" Bamboo Products (like Buffy & Sleep Number)
Traditional Bedding (like Parachute & Brooklinen)
Proactive Temperature Regulation?
Yes
No
No
Manages Temperature Fluctuations?
Yes
Yes
No
Ideal for Thermally Incompatible Couples?
Yes
No
No
Moisture Wicking Capabilities?
Yes
Yes
No
Breathability?
Yes
Yes
No

"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.

"Loved these. Elegant feel with a comfortable coolness to lull you to sleep."

- Eileen B.

"Love the fabric and really does feel cool to touch at night!"

- Lauren T.

FAQs

Not to be confused with pillowcases, these 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.

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.

The Single Pack option comes with one pillow cover. The Two Pack comes with two pillow covers. That means one for you and one to share with your partner (or not share, we don’t judge).