Coolside™ Pillowcase

240 reviews
Designed with our exclusive Lulltra ™ Cool technology, the Coolside Pillowcase helps regulate body temperature as it maintains a cool-to-the-touch surface all night.

Queen: 19 x 29 in.
King: 19 x 35 in.

Size: Queen (1 Pc)

100-Night Risk-Free Trial + Free Delivery & Returns

Ships Fast
Ships Fast
Easy Returns
Easy Returns
100-Night<br> Risk-Free Trial
Risk-Free Trial
Unparalleled Customer Service
Unparalleled Customer Service
5-Year Warranty
5-Year Warranty

To wash: Machine wash separately in cold gentle cycle. Use a mild detergent. Do not use bleach or fabric softener.

To dry: Tumble dry low. Do not iron or dry clean.

We have a 100-day return policy for all our products. We'll send you a pre-paid return label for a free, easy return. Once we receive your returned item(s), we'll issue you a full refund within 2 business days to the form of payment you made your purchase with.

When pillows are returned to our headquarters, our team sorts through the bunch and donates gently used pillows to local charities.

Hypoallergenic Formulation
Hypoallergenic Formulation
Machine Washable
Machine Washable

Common Questions About The Coolside™ Pillowcase

How do cooling pillowcases work?

Cotton, silk, and bamboo are common fabrics for a cooling pillow. These fabrics work in different ways to leave a cooling effect. Some pillows are designed to prevent heat from getting trapped while some materials, such as bamboo, are better to wick away sweat or moisture to keep you cool. If you are a hot sleeper, try a cooling pillowcase today with Coop and receive a 100-night trial with every purchase.

What is the best cooling material for a pillowcase?

Our cooling pillowcase is made with innovative cooling technology that feels cold and silky to the touch. Unlike cotton or silk, the Lulltra™ cool fabric material we use is a blend of bamboo-derived viscose rayon and polyester that is also hypoallergenic and breathable. Bamboo is a great cooling material because it helps regulate body temperature and reduces night sweats by wicking away heat and moisture.

Can a cooling pillow protector be washed?

Yes! The cooling pillow protector is machine washable. Put the pillow cover in the washing machine separately on a cold gentle cycle with mild detergent, and dry on tumble dry low. Be sure to not use bleach or fabric softener, and do not iron or dry clean the cooling pillowcase.

Customer Reviews
4.8 Based on 240 Reviews
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Matthew B.
United States United States

Very cool and comfortable.

The poolside pillow case is definitely cool as described. The material is very comfortable and it fits right over my Original pillow perfectly. The only suggestion I would have is that the design does make it appear a bit like it doesn’t have a real pillow case on it. It detracts a tad from the aesthetic. The fabric can pill a bit as well. I was recommended to turn the pillowcase inside out when washing it as well. But its performance is definitely as good as indicated!

Lina M.
United States United States

So comfortable

I have a hard time sleeping in summer because I run hot. The coolside pillowcase does as advertised and it's been so helpful. Love it!

Jordan B.
United States United States

Cool and comfy

Love it! The cool side makes sleeping on hot summer nights a breeze. I like that the reverse side has the same soft feel of the original pillow case.

United States United States

Cooling item that STAYS cool

Love this item! Can use either side depending on the temp, stays cool and doesn't heat up. Highly recommend.

Mackenzie D.
United States United States

Cool All Night

Coolside pillow stays cool all night so you can just flip it when you get hot.