Core Mattress Protector
Protect and cool. Rather than being an afterthought, our Core Mattress Protector, puts heat-mitigation at the forefront. Built into a silent, soft layer of waterproof fabric our NASA-approved temperature-regulation technology cools while actively shielding your mattress from dirt, spills, and daily use.
|Twin||39" x 75"|
|Twin XL||39" x 80"|
|Full||54" x 75"|
|Queen||60" x 80"|
|King||78" x 80"|
|Cal-King||73" x 84"|
Ground shipping and returns are FREE for all US orders. Shipping typically takes 3-7 business days for most in-stock merchandise. Canada and express shipments are available for an additional fee at checkout.
For your peace of mind, all our products come with a 60 night satisfaction guarantee, as well as a 180 night warranty. If you don't love your new bedding, simply send it back for a full purchase price refund. No questions asked! FYI we do our very best to donate returns to charity.
Utilize Affirm, Shop Pay Installments, or PayPal Credit during checkout as flexible payment plans to split your purchase amount into equal and interest-free payments.
Save 10% when you spend $400+
Core Down Alternative Pillow
"Cool" is the new standard. This classic cotton cover has been infused with technology developed for NASA so there's ...
Essential Sheet Set
Airy, breathable, and perfectly weighted, our Essential Sheet Set combines the soft durability of cotton with the pe...
Your new everyday comforter. Ideal for keeping your nights cooler, but still warm enough for cozy winters. With NASA-...
Regulate your temperature while protecting your investment in your mattress with a silent layer of waterproof protection. No longer feel forced into a product for a mattress warranty, and finally get a protector that saves your mattress, your sleep, and your sanity.
- 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
- Oeko-Tex Standard 100 Certified Technology
The reviews are in.
"I recently got a new memory foam pillow-top mattress that is super comfortable, but had me waking SOAKED in sweat. After a ton of research, I finally found this gem. And let me tell you, it really works. I've found that it does a great job at temperature-regulation." - Mimia W.
Set it and forget it.
"I was worried the protector would be sort of thick and noisy due to the waterproof layer, but nothing of the sort. Invisible under my cooling sheets and the bed stays cool." - Sohana S.
"Besides being durable and quiet, Slumber Cloud's option also utilizes cooling technologies. As one of the many glowing reviews put it: 'This is the coolest sleep I have had in years.'" - Good Housekeeping
Really keeps you cool!
"Keeps me cool all night long! Best sleep in months." - Amy L.
"I'd highly recommend this mattress protector. It's already proven to protect our mattress and is really comfortable." - Jonathan G.
Sleep Foundation's Best Luxury Mattress Protector
"We were about to get a new mattress because we were sooo hot from our memory foam mattress that cost us thousands and thousands of dollars! This mattress pad has been a lifesaver and has cooled our bed down drastically from what it was." - Nicole V.
"This is the best waterproof mattress pad I’ve ever owned. It’s well made, comfortable and it doesn’t make you sweat. It’s an excellent purchase." - Alison W.
As featured in House Beautiful
Why we're different.
Traditional bedding and moisture wicking technologies react to changes in your body temperature while you sleep. Slumber Cloud is doing something different.
Slumber Cloud Bedding utilizes Outlast® technology for a unmatched approach to temperature regulation. Outlast® technology is proactive, not reactive. As your body temperature increases during sleep, Outlast® technology stores that heat to keep you cool, and then releases it as you cool down...keeping you feeling “just right”.
Our premium lining fabric takes a proactive approach by employing active temperature control properties, versus other "cooling" bedding that is moisture-wicking and simply reactive.
Our Tencel® outer cover offers a silky smooth feel and moisture wicking properties for the most comfortable night's sleep.
Outlast® materials improve comfort for:
Anyone looking for a more comfortable night’s sleep - they’ll sleep cooler!
Women experiencing menopause - hot flashes and resulting night sweats are reduced so they sleep cooler and drier.
Thermally incompatible couples - individuals sleep at their own ideal temperature
The thoughtfulness is in the details.
It doesn’t stop at thread count. It’s the little things, the thoughtful details, that make our products the best available.
HDPE / Polyester Blend
A HDPE / polyester blend cover provides soft, durable and silent comfort
Up to 20''
Fits any mattress up to 20'' deep
Easy to Care For
Just throw it in your home washing machine
Most frequently asked questions.
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.
Outlast® technology is made of a unique material that can absorb, store and release excess heat. As an individual’s skin temperature increases, the technology will absorb that excess heat to help reduce overheating. The material will store the excess heat until the skin temperature begins to drop. When this occurs, the stored heat is released back to the individual to prevent chill.
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.
Slumber Cloud takes a proactive approach to temperature control by absorbing and storing excess heat when temperatures are too warm and releasing heat when temperatures are too cold. This approach is different than most other "cooling" bedding technologies/products on the market that are moisture-wicking (ex. Bamboo & Eucalyptus).
Moisture-wicking is a reactive approach because it doesn't start to cool you down until you build up sweat and moisture and then wicks it off of you. Our products are designed to prevent you from ever getting to the point of sweating and building up moisture.
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.
The technology in our mattress pads 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.
Love your bed, but not all the heat buildup? Although they can reduce pressure points, beds with memory foam often get uncomfortably hot. Slumber Cloud bedding with Outlast® technology helps prevent the heat from your mattress from building up. You'll still enjoy the comfort of your mattress but without that hot, sweaty feeling.
Made with a unique elastic skirting and a 360-degree grip, our pads and protectors perfectly fit any mattress as short as 5’’ and up to 20”.
Yes! Just like traditional bedding, Slumber Cloud products are designed to be washed and dried in your home washer and dryer. Please carefully follow the care instructions on the tag of your products.
The technology in our bedding is sensitive to high heats - instead of ironing we recommend using a wrinkle release spray such as Iron In a Bottle for that crisp and finished look.
Please refrain from using harsh chemicals such as bleach and oxiclean on your bedding. Instead opt for more natural alternatives such as a small amount of dish soap, a warm water & vinegar solution, or specialty formulated laundry detergent such as Dropps
To wash your mattress pad, please follow the washing instructions on the tag. If you have cut your tags after purchase, it is recommended to wash with Slumber Cloud Free & Clear Laundry Detergent or a mild detergent in cold water on a delicate spin cycle. When it’s time to dry your mattress protector, please dry it on low heat or air dry. We recommend taking the mattress protector out halfway through a cycle to ensure that everything is moving around and one part is not constantly up against the heating element.
Free shipping is only valid for US and Armed Forces delivery addresses. However, we do offer discounted shipping rates to Canada addresses.
Currently, we only ship internationally to Canada. At the time of purchase we include the cost of shipping, taxes, and duties for Canadian shipments. No additional fees will incur at delivery, but if they do please contact our customer service team at firstname.lastname@example.org to take care of the issue.
For all other countries, If you find a forwarder or have a friend or family member here in the states, we would be more than happy to work with you to get it there.
We accept returns in any condition within 60 days of purchase! We want you to absolutely love your new bedding, so if you wash an item, try it out, and decide it's just not for you, we can definitely still initiate a return.
Please note we do our very best to donate all returns to local charities instead of a landfill. We appreciate your help in this process by washing any used items before returning them to us.
All shipping fees for domestic returns are completely free! When you initiate a return through our returns platform, you will receive a prepaid shipping label to get the item back to us.
If you live outside the US and are looking to initiate a return, please check out the return policy in the International FAQs.
If you're looking to initiate a return, just head over to our returns page!
Please note that we are not able to process returns for items listed as Final Sale or past the 60 day return period.
All products sold on the Slumber Cloud website come with a 60-Day Satisfaction Guarantee. Sleep on it, wash it, and really test it out - If you are not fully satisfied with your new bedding you can return the item(s) within 60 days of your purchase date, no questions asked. An refund will be issued, within 7 business days of receiving the returned product.
Yes! All of our products are covered not only by the 60 night trial period but also a 180 day warranty which covers manufacturers defects (i.e. stitching, sizing).
Please note in addition to damage caused by disregard of care instructions, temperature performance is not considered a manufacturers defect or covered by the product warranty.
Free Shipping & Returns
All U.S. orders are shipped right to your door, free of charge.
Try it For 60 Nights
Sleep on it, wash it, and really put it to the test for two whole months! If you don’t love your new bedding, just return it for a full refund. No questions asked!