Core Pillow Covers - Final Sale
Please note that items listed as Final Sale are not eligible for return, exchange, or the 60 night trial period.
|Standard||20" x 26"||Standard||21" x 29"|
|King||20" x 36"||King||21" x 37"|
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 ...
Core Mattress Pad
Go beyond traditional bedding. The Core Mattress Pad features two layers of NASA-approved temperature regulating tech...
Flip to the cool side. Oh wait, they're both cool. The UltraCool Pillow takes the technology from our temperature-re...
Even the hottest of sleepers can stay cool and comfortable all night long. With two layers of Outlast® fabric, these cooling pillow covers will help keep your head at the perfect temperature all night while complementing the other components of your Slumber Cloud sleep system.
- One set includes 2 pillow covers
- 300 thread count - 40% NASA-approved Outlast® viscose / 60% cotton top cover for peak breathability and temperature-regulation
- Proprietary Outlast® lining fabric for maximum heat management and added comfort
- Oeko-Tex Standard 100 Certified Technology
The reviews are in.
"Exceeded our expectations. I was hoping for less head sweating but the cover eliminated my head sweats. I'm amazed!" - Sarah H.
"This pillow cover makes any pillow feel ice cold. My son(2) and myself (45) are head sweaters. With these covers, no more! Love the product so much purchased sheets 2 weeks later." - Christopher C.
"This pillow cover has quickly become a favorite." - Prevention
By golly it works.
"I was a huge skeptic of the 'NASA cooling fabric' but the elves at Slumber Cloud fooled me! I'm a total convert now." - Eric P.
"Love our pillow covers! Sleep so much better without constantly flipping my pillow for coolness!" - Amber T.
Healthline's Best Overall Cooling Pillowcase
"These pillow covers are wonderful. They are soft and cooling. I don't know how it works but they do." - John F.
It’s cool man!
"Forever waking with hot sweats and discarding my pillow to find a cool spot...those days are over! Love this pillow cover!" - Greg B.
"These cooling covers might be the best-kept sleep secret yet." - Real Simple
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.
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.
Works Underneath Your Pillowcase
Designed to work even when used underneath your pillowcase
Zippered enclosure transforms your existing pillows into performance "cooling" pillows
Easy to Care For
Just throw it in your home washing machine
Most frequently asked questions.
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.
By managing the build-up of heat and moisture under the covers, Outlast® technology helps keep you at a comfortable temperature so you sleep “just right.”
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.
Not to be confused with pillowcases, this set of pillow covers are traditionally used underneath your pillowcases to keep your head cool and extend the lifetime of your pillows.
The Core Pillow Cover Set comes with two pillow covers. That means one for you and one to share with your partner (or not share, we don’t judge).
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.
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 pillow covers, please follow the washing instructions on the tag. If you have cut your tags after purchase, then 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 pillow covers, please dry it on low heat or air dry.
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 email@example.com 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!