Evercool®+ Cooling Pillowcases
Evercool®+ Cooling Pillowcases
Third-party Tested, Scientifically Cool • See Lab Results
Third-Party Tests
What are PFAS?
PFAS are known as "forever chemicals" because they do not break down naturally, accumulating in the environment and the human body over time. This has been linked to lead to hormonal disruption and other health issues.
N-EtFOSA
Not detected
N-MeFOSA
Not detected
N-EtFOSE
Not detected
N-MeFOSE
Not detected
8:2 FTS
Not detected
Me-PFOA
Not detected
Et-PFOA
Not detected
PFNA
Not detected
PFDA
Not detected
PFUnDA
Not detected
PFDoDA
Not detected
PFTrDA
Not detected
PFTDA
Not detected
PFBA
Not detected
PFBS
Not detected
PFPeA
Not detected
PFHpA
Not detected
PFHpS
Not detected
PFTrDA
Not detected
PFTDA
Not detected
PFBA
Not detected
PFDoDA
Not detected
PFTrDA
Not detected
PFTDA
Not detected
PFHxS
Not detected
HFPO-DA
Not detected
What are BISPHENOLS?
Bisphenols are a family of chemicals used primarily to create hard, clear plastics (polycarbonates). They are also known as ‘endocrine disruptors’ and can cause hormonal issues.
Bisphenol A (BPA)
Not detected
What IS QMAX?
Qmax measures how cool a fabric feels instantly when it touches your skin. The higher the value, the faster the heat transfers, and the "cooler" the fabric feels.
Coolness Test (Q-max)
0.445 W/cm²
measuring anti-static properties
This measures how long the fabric clings to a surface due to static electricity after being rubbed against another material. It simulates a shirt sticking to your body or pants sticking to your leg.
Electro-Static Cling (Nylon)
0s
Electro-Static Cling (Polyester)
2 - 7s
MEASURING ANTI-MICROBIAL PROPERTIES
The antimicrobial test follows ISO 20743 standards, which measures measures the difference in bacterial growth between a treated fabric and standard cotton.
Escherichia coli (Bacterial)
Low Effect
Staphylococcus aureus (Bacterial)
Low Effect
Candida albicans (Fungal)
Low Effect
Winner of the 2025 Health Sleep Award, our Evercool® Cooling Pillowcases is made with Evercool® fabric infused with IONIC+™ silver yarns for a sleep experience that’s as advanced as it is indulgent. The cool-to-the-touch surface regulates temperature seamlessly through the night, while moisture-wicking performance keeps you dry and comfortable. Built-in antimicrobial freshness maintains a cleaner sleep environment, and the luxuriously soft, smooth finish transforms every night into effortless restoration.
How It Feels
Refreshingly cool and luxuriously soft — perfect for hot sleepers
Proprietary Evercool® Cooling Fabric
Our Evercool® fabric combines advanced thermal science with luxurious comfort, setting a new standard for cooling bedding.
"I can finally sleep! Works like a charm."
"I feel like I'm sleeping in a cloud—cooler than any blanket."
"Always cool to the touch and helps with hot flashes."
"Purchased 5 comforters already! My family loves them."
| Standard |
| 74 W x 48 L |
98%
reported that the pillowcases helped improve their overall sleep quality
92%
experienced better temperature regulation with the pillowcases
95%
found the cooling sensation better compared to a regular pillowcases
Scientifically Proven,
Third-Party Tested*
98%
reported that the pillowcases helped improve their overall sleep quality
92%
experienced better temperature regulation with the pillowcases
95%
found the cooling sensation better compared to a regular pillowcases
The Science of Evercool®
Evercool® is a proprietary fabric that instantly cools and regulates your body temperature for all night comfort, making it the best bedding for hot sleepers.
Engineered from ultra-fine, smooth fibers 75x thinner than hair, Evercool® is frictionless and glides effortlessly across your skin.
Moisture is pulled and evaporates immediately through microscopic channels for uninterrupted, sweat-free sleep.
Evercool® is designed to actively release trapped heat while allowing fresh, cool air to circulate throughout the night for optimal thermal regulation.
Evercool®+ is permanently 'self-cleaning'; embedded with naturally antimicrobial silver yarn that protects the bedding from odor and bacterial growth.
Rest® Labs
Cool-to-the Touch Evercool’s high-conductivity polyamide yarns outperform fabrics like silk, bamboo and cotton, keeping hot sleepers cool and comfortable.
Smooth & Soft Engineered for a buttery-soft touch that gets even smoother with every wash.
Moisture-Wicking By knitting ultra-fine, smooth fibers at high densities, the resulting Evercool® fabric has significantly more surface area that touches your skin. This maximizes heat dispersion and allows for faster sweat wicking.
Breathable Independent airflow testing shows Evercool® is light, airy, and breathable for uninterrupted rest.
Antimicrobial Independent airflow testing shows Evercool® is light, airy, and breathable for uninterrupted rest.
How Evercool® Compares
Evercool® outperforms fabrics like silk, bamboo and cotton, keeping hot sleepers cool and comfortable for uninterrupted rest.
(Qmax)*
*Qmax measures a fabric's coolness - higher value means cooler feel.
Data from SGS lab test report of Evercool® fabric.
Sleep Expert Approved
“It’s not only important to keep your room cool for an optimal sleep environment, but your bedding also plays a significant role in how well you sleep at night.
Rest Evercool Cooling products have the unique ability to regulate your body temperature during sleep, while also feeling soft and luxurious to the touch.”
FAQs
The Evercool®+ Pillowcase is actually cool, really cool. It has one of the highest lab tested Qmax values on the market at 0.36 (cotton is 0.11 and silk is 0.19). The higher the Qmax value, the higher the cool to the touch effect. The best part is that the Evercool®+ fabric achieves these values without using any cooling additives, nano-particles or chemicals. The sheets also have IONIC+ Antimicrobial Technology woven into the fabric to help prevent microbes from accumulating on the fabric, keeping the sheets fresher and cleaner longer.
The Evercool®+ Pillowcase consists of two main ingredients: Nylon and spandex blend and IONIC+ Antimicrobial Technology Silver Yarn. The advance nylon used offers the cool to the touch effect, high moisture wicking capability and silky touch. The spandex used gives the outer shell a little stretch to improve on the anti-sagging properties and machine washability. The IONIC+ Antimicrobial Technology silver yarn provides antimicrobial properties. It is permanent, never washes out and helps the fabric stay fresher, cleaner, and lasting longer.
Each order comes with two Evercool®+ Pillowcases.
With our one-year limited warranty on all our products, you're guaranteed high-quality, well made products.
If you're not satisfied, you can easily return for up to 30 days. To ensure you're getting the best price, we also offer a Rest Easy Best Price Guarantee.
Just like other bedding products and clothing, it’s best to wash before use. Wash separately on gentle with a pH neutral detergent. Tumble dry on low or delicate. Do not iron, dry clean, bleach, or use fabric softener.
Discover Evercool® Bedding
Customer Reviews
- Haley H.Verified BuyerRated 5 out of 5 stars9 hours agoSheets that actually COOL
We were recommended these sheets and they raved over cooling they were…..they were right!!! I love these sheets
- stephanie L.Verified BuyerRated 5 out of 5 stars2 days agoAbsolutely Love
The sheets are amazing. I only use the fitted sheet with the comforter and absolute game changer! Love them
- Kathleen M.Verified BuyerRated 5 out of 5 stars4 days agoMY FAV
Literally the best fitted sheet I’ve ever owned. It has deep pockets and a strong lining that’s well made elastic so even with my 3 inch topper on my bed I didn’t have to size up the sheet at all and it fits/stays on like a dream. Coolest adult purchase I’ve made lol.
- Tricia K.Verified BuyerReviewingEvercool®+ Cooling PillowcasesI recommend this productWhy I like it Temperature Regulating, Product QualityRated 5 out of 5 stars4 days agoPillowcases
These pillowcase are as amazing as the comforter. Very cooling, and if you DO happen to get warm in the night, just flip the pillowcase upside down and cool yourself back to sleep. Aaaaah.
- Sharon W.Verified BuyerRated 5 out of 5 stars4 days agoBest sleep ever !
I love rest sheets and have found that I get a good nights sleep !
Feels cool and I look forward to hopping into bed every night !
I purchased the comforter as well and not disappointed. Easy to wash and care for and feels comfortable .. even my dogs love to lay on it !