Absolutely transformed my sleep. I run hot at night and these sheets kept me cool through the whole night, no waking up sweaty. The fabric feels silky but breathable. Fitted sheet stayed snug on my thick mattress too. Worth every penny
Vanessa L
Verified Customer
CloudCool Cooling Sheet Set
$82.99
$106.99
Savings based on comparable value.Learn more
Pricing Disclosure
The listed comparable value represents the manufacturer's suggested retail price or the average retail price of similar products with comparable features, materials, and construction available from major retailers at the time of listing. Mellow's sale price reflects our direct-to-consumer pricing model, which eliminates traditional retail markups. Comparable values are reviewed periodically and may not reflect real-time pricing from all retailers.
1 Fitted + 1 Flat sheet + Pillowcases
Instantly Cool to the Touch
Silky Soft, Never Stiff
Stay-Put, Wrinkle-Free Fit
Breathable & Moisture-Wicking
30-Day Trial
Hassle-Free Returns
Overview
The perfect sheets don't just feel amazing when you climb into bed, they stay that way all night.
The CloudCool™ Cooling Sheet Set is made from buttery-soft cooling fibers that instantly pull heat away from your body while releasing excess moisture for a cooler, deeper sleep. Silky smooth with just the right amount of stretch, they feel like your favorite loungewear but for your bed.
Unlike traditional sheets that wrinkle, bunch, and pop off the corners, mellow's adaptive stretch design hugs your mattress for a smooth, tailored fit that stays perfectly in place from bedtime to morning. No slipping. No loose corners. No waking up tangled in your sheets.
Thoughtfully designed to help you sleep cooler and more comfortably, every detail (from the breathable fabric to the wrinkle-free finish) was made to turn your bed into your favorite place to be.
Materials
Premium Cooling Fiber Blend
Made from our CloudCool Cooling fabric that feels incredibly smooth while naturally helping release heat and moisture.
Breathable Moisture-Wicking Fabric
Engineered to promote airflow and pull moisture away from your body so you stay cooler, drier, and more comfortable all night long.
Adaptive Stretch Construction
A flexible knit gently conforms to your mattress for a tailored fit that stays smooth without bunching or slipping.
Care
Machine wash cold. Tumble dry low.
FAQ
What comes in the sheet set?
Every set includes:
1 Fitted Sheet
1 Flat Sheet
Pillowcases
Twin XL: 1 Standard Pillowcase
Full & Queen: 2 Standard Pillowcases
King & California King: 2 King Pillowcases
Are these actually cooling?
Yes. Powered by mellow's proprietary CloudCool™ Cooling Technology, the breathable cooling fibers are designed to pull heat away from your body while releasing moisture, helping you stay comfortably cool for the perfect night’s sleep.
Will the fitted sheet stay in place?
Absolutely. Our adaptive stretch construction hugs your mattress to help prevent slipping, bunching, and loose corners throughout the night.
Do they wrinkle easily?
No. The naturally smooth stretch fabric is designed to stay flat and wrinkle-free, so your bed looks freshly made with minimal effort.
Are they good for hot sleepers?
Definitely, these were made with hot sleepers in mind! The breathable, moisture-wicking fabric helps reduce trapped heat and sweat, making them perfect for anyone who sleeps warm.
Absolutely transformed my sleep. I run hot at night and these sheets kept me cool through the whole night, no waking up sweaty. The fabric feels silky but breathable. Fitted sheet stayed snug on my thick mattress too. Worth every penny
Vanessa L
Verified Customer
Cooler Sleep Starts Here.
If you've ever kicked off the covers, flipped your pillow searching for the cool side, or woken up tangled in hot sheets, these were made for you. CloudCool™ Cooling Sheets combine silky-soft comfort with breathable cooling technology and a stay-put fit that keeps your bed looking and feeling perfect all night long.
Cool The Moment You Climb In
Cooling that feels refreshing, not freezing. The premium fibers instantly pull away body heat while helping regulate your sleep temperature from bedtime until morning.
Silky Soft, Night After Night
Incredibly smooth with a buttery-soft feel that only gets better with time. These are the sheets you'll look forward to climbing into every night.
Always Smooth. Never Slipping.
Traditional sheets wrinkle, bunch, and pop off the corners. Ours gently stretch to hug your mattress, creating a clean, tailored look that stays perfectly in place.
Cooler Nights. Better Sleep.
Breathable, moisture-wicking fibers help release heat and humidity so you wake up feeling cool, dry, and refreshed… not overheated.
Made For Everyday Living
Machine washable, wrinkle resistant, and thoughtfully designed to handle real life while staying incredibly soft, smooth, and comfortable wash after wash.
Easy To Love. Easy To Wash.
Throw them in the washer. Tumble dry low. That's it. They'll come out looking fresh, feeling soft, and ready for another perfect night's sleep.
Customer Reviews
Overall rating: 4.9 / 5 from 574 reviews.
I love Mellow products. I have one of everything. The cloud cooling sheets are great for summer. They feel so good and are very comfortable. The silky feel is wonderful on my skin. They keep me cool through the night and it helps me sleep better when it’s hot out. The cooling pillow cases feel so good on my face. They are even nice to use when it’s not hot. I’m using them now and it is fall,. They keep me warm and cozy even when it’s cold outside. There are a lot of pretty colors to choose from. I highly recommend them.
Terrible experience. My package was delayed and my sheets are stained. I have been email them about this issue and they just go back and forth asking thousand questions and pictures.
This was my first experience with Mellow sheets.
They are very easy to place on the mattress and super comfortable. Don’t be surprised they are very slippery.
The sheets definitely keep me cool. The problem is they are soooo slick that it is almost impossible to keep the top sheet on the bed. I have to tie the bottom corners to the bed frame to keep them in place at night and to be able to make the bed in the AM. They washed up well. Mellow, may I suggest you include ties at the bottom corners to assist with keeping the top sheet on the bed.
My experience with customer service has been unsatisfactory. I placed an order for bedding on August 11th, but as of today, September 9th, 2026, I have only received the pillowcases from that order. No action has been taken to expedite the delivery of the blanket or sheets, and no status updates have been provided regarding the shipment.I would not recommend this company shoe anyone. thank you
Have bought cali king and queen comforter that we love. Like sleeping on air. Our standard poodle has love affair with it also and doesn’t like to get out of bed in mornings. We purchased the Cali king sheet set and and they are awesome. Love this product and 10 stars IMO
Everything you need to know about the CloudCool™ Cooling Sheet Set.
Are these actually cooling?
Yes. Powered by mellow's proprietary CloudCool™ Cooling Technology, the breathable cooling fibers are designed to pull heat away from your body while releasing moisture, helping you stay comfortably cool for the perfect night’s sleep.
Will the fitted sheet stay in place?
Absolutely. Our adaptive stretch construction hugs your mattress to help prevent slipping, bunching, and loose corners throughout the night.
Do they wrinkle easily?
No. The naturally smooth stretch fabric is designed to stay flat and wrinkle-free, so your bed looks freshly made with minimal effort.
Are they good for hot sleepers?
Definitely, these were made with hot sleepers in mind! The breathable, moisture-wicking fabric helps reduce trapped heat and sweat, making them perfect for anyone who sleeps warm.
Trusted By Thousands Of Happy Sleepers
Real people are sleeping deeper, cooler, and more comfortably with mellow.
0%
of mellow customers sleep at their ideal temperature
0%
would recommend mellow to their family and friends
