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Performance Cotton Pillowcases

NASA Cooling Technology Cotton Hand Feel Breathable Fabric

$39.00

Complete your Performance Cotton Sheet Set with matching Pillowcases. Crafted from cotton for softness and durability, with temperature-regulating fibers for cool comfort.

Product Comparison

Features & Benefits

- Patented Outlast® fibers and premium cotton give the ideal balance of comfort and temperature-regulation

- Includes two pillowcases

- OEKO-TEX® STANDARD 100 Certified Technology. Certification Number: SH025 151577 TESTEX

Materials

- 300 thread count 30% Outlast® viscose / 70% cotton

Size Guide

Standard - 20” x 30”
King - 20” x 40”

Care Instructions

Basic Care:
Machine wash cold water on a gentle cycle with a mild detergent and with like colors only. Tumble dry low heat until fill is completely dry. Remove from the dryer immediately. Only use non-chlorine bleach when needed. Do not dry clean. Do not iron.

Pro Tip:
Wash this every 1-2 weeks. Do not iron, bleach or dry clean your sheets.

Free Shipping & 60-Night Risk Free Trial

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.

Performance Cotton Pillowcases

On Sale from $39.00

Why You'll Love It:

Pillowcases designed for maximum sleeping comfort.

Year Round Comfort

NASA-engineered tech and cotton fibers absorb excess heat when warm, release it when cool. Ideal for year-round comfort.

Singly-Ply Construction

The Performance Cotton Pillowcases have single-ply, long staple fibers for high-quality, breathable comfort while you sleep.

Softer With Each Wash

With each wash the cotton blend gets softer, like a cozy lived-in cotton t-shirt.

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.

How it works

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%.

Read the 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%.

Read The Outlast Heat Sleep Study

"Didn't realize how much the sheets would make a difference in my quality of sleep. Definitely buying another set!"

- Becker

"The sheets are soft and cozy. They fit my bed perfectly. I love the additional strap on the 4 corners of the fitted sheet."

- Kylie S.

Slumber Cloud Sheet & Duvet Comparisons

All are temperature regulating, breathable and soften with washing. The difference is in the hand feel:

Performance Linen Blend

Cooling. Textured. Airy.

Performance TENCEL™

Cooling + wicking. Silky smooth.

Performance Cotton

Cooling cotton. Durable. Classic.

Detailed view of the Slumber Cloud Performance Pillowcase with Outlast temperature regulation technology

Detailed view of the fabric on the Slumber Cloud Essential Pillowcase with temperature regulation technology

Sheet Set Pieces

Which sheet set size is best for you?

4 Piece Sheet Set Includes:

One Flat Sheet, One Fitted Sheet, Two Pillowcases (Twin & Twin XL include one pillowcase)

7 Piece Sheet Set Includes:

One Flat Sheet, One Fitted Sheet, One Duvet Cover, Four Pillowcases (Twin & Twin XL include 3 pillowcases)

FAQs

What's the difference between the Performance Cotton Pillowcases, Performance TENCEL™ Pillowcases, and the Performance Linen Blend Pillowcases?

Although all options are designed to help you sleep cooler and more comfortable, it’s important to choose the version that best suits your sleeping needs. Below is a quick overview of each option to help you in this decision making:

The Performance Cotton Pillowcases:
The blend of cotton and Outlast® temperature-regulation viscose fibers offers a traditional super soft cotton feel. Ideal for those who prefer a more classic pillowcase but want temperature-regulation performance.

The Performance TENCEL™ Pillowcases:
The blend of premium TENCEL™ and Outlast® temperature-regulation viscose fibers offers a buttery, silky performance feel. Ideal for those who prefer silky smooth softness plus moisture-wicking.

The Performance Linen Blend Pillowcases:
A blend of Outlast® temperature-regulation technology, viscose, and FLAX™ Linen fibers offers an elevated textured look and ultra soft handfeel. Ideal for those who want temperature-regulation with the luxurious look of Linen.

How many degrees cooler will this keep me?

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.

What is the hand-feel of the fabric?

The premium fabric has a super soft cotton hand-feel, with a slight cool touch.

How many pillowcases come in a set?

The Essential Pillowcase Set comes with two separate pillowcases in a set.

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."

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