A folded Slumber Cloud Core Mattress Protector on a cream background
A detailed view of the waterproof lining on the Slumber Cloud Core Mattress Protector
A woman adjusting the corner of a Slumber Cloud Core Mattress Protector on a mattress
A folded Slumber Cloud Core Mattress Protector on a cream background
A detailed view of the top fabric on the Slumber Cloud Core Mattress Protector
A detailed view of the top fabric on the Slumber Cloud Core Mattress Protector
Up to -80% Final Sale

Core Mattress Protector - Final Sale

Protect and cool your mattress with our Core Mattress Protector. Featuring NASA-engineered cooling technology, it guards against spills and enhances comfort.


Final Sale Items are not eligible for return, exchange, or the 60-night trial period. 

Select Color
White
Select Size
$31.80 $159.00you save $127.20
Pairs well with..
The Slumber Cloud Performance Pillow Cover made with Outlast® temperature regulation technology and Tencel to help you stay cool through the night.
From $59.00
Performance Pillow Covers

- 100% waterproof protection preserves your mattress and extends its lifespan

- Outlast® Xelerate™ fabric absorbs, stores, and releases heat then spreads excess absorbed heat out from under your body so you sleep at the perfect temperature

- Full elastic pocket holds the pad in place for any mattress up to 20'' deep

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

- 330 gsm 48%HDPE / 52% polyester circular knit fabric

- 100% polyester non-woven lining fabric with Outlast® Technology coating + heat spreading capabilities

- TPU breathable waterproof lamination

- Fullpocket 100% polyester knit elastic skirt

Twin - 39" x 75"
Twin XL - 39" x 80"
Full - 54" x 75"
Queen - 60" x 80"
King - 78" x 80"
Cal-King - 72" x 84"
Split-King - 2x 39" x 80"

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. To maintain even distribution of fill, re-fluff or shake throughout the dry cycle. Only use non-chlorine bleach when needed. Do not dry clean. Do not iron.

Pro Tip:
Mattress protectors should be washed 2-4 times a year. Do not iron, bleach or dry clean your mattress protector. Do not wash or dry with any abrasive fabrics. Abrasion or damage to the waterproof lamination during washing can cause the waterproofing to fail.

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 Mattress Protector - Final Sale
On Sale from $31.80

Why You'll Love It:

A protector that saves your mattress, your sleep, and your sanity.

Invest In A Cooler Night's Sleep

The Core Mattress Protector uses NASA-engineered technology to regulate temperature by spreading absorbed heat, ensuring cooler sleep and protecting your investment.

Waterproof Protection

Keep your mattress fresh with the Core Mattress Protector's TPU breathable waterproof lamination, shielding against dirt, spills, and wear.

Silent Sleep

No more noisy nights with the Core Mattress Protector. Enjoy silent sleep and waterproof protection with TPU breathable lamination.

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

FAQs

Although each of these products utilize Outlast® technology to help you sleep at the perfect temperature, each product addresses different needs. If you need the most temperature-regulation performance, one of our mattress pad options are right for you. If you need 100% waterproof protection and temperature-regulation, you should choose the mattress protector.

Definitely! When you sleep hot but your partner sleeps cold we refer to this as being “thermally incompatible”. Our bedding is designed to automatically adjust to each sleeper’s ideal sleep temperature. With the unique ability to react to each sleeper's temperature independently, our bedding ensures that both you and your partner will sleep comfortably all night long.

The technology in our mattress protector is designed to work even when used underneath your fitted sheet. We recommend to layer the mattress protector on top of your mattress but under your fitted sheet. If you are using a mattress topper, layer that first followed by the mattress protector and fitted sheet.

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.