“I now have 3 sets and would never sleep on anything else. I NEVER get too hot and wake up. I’m now buying them as presents.”
Verified buyer
Wonderful Product
“Absolutely wonderful sheets, fit great, feel wonderful!”
Verified buyer
SILKY SOFT SLEEP!
“Beautiful, silky soft. I think I’m sleeping better!”
Verified buyer
BAMBOO SHEETS FOR THE WIN!
“If you want to stay cool at night, have super soft sheets when climbing into bed, this is the way to go, you won't be sorry!”
Verified buyer
Do these really feel different? YES!
“when I got under the covers I found that they were the FIRST sheets that felt different. They were cool..and they were comfortable.”
Verified buyer
WOW, JUST WOW!
“I laid down and had the best sleep I've had in a long time. I bought two more sets and told my son about. He bought two sets.”
Verified buyer
BEST sheets ever!
“I now own 4 sets of these sheets, in less then 2 months. They are the ONLY sheets I've ever owned in over 50 years that do not make me sweat!”
Verified buyer
The science bit
Why fabric matters more than thread count
Thread count is a trick.
The cooling is in the hollow fiber itself: structural, not a coating, so there's no coating to wash out. Each 100% Bamboo Viscose fiber is hollow, like thousands of tiny straws running through your sheet.
Take a closer look
What's in your order
Your bed sheet order, unrolled. Tap any card for the details.
Cool to the touch
QMax cool-touch score 0.42 vs 0.11 for cotton.
Details
QMax measures how cool a fabric feels the moment it touches your skin. Higher = cooler to the touch.
Hollow fiberMoisture-wicking3x softer than cottonQMax 0.42 cool-touchArrives rolled & readySilky-soft, side by side
What you won't find
No cooling coating that washes out
No thread-count gimmicks
No polyester in the fabric
FAQ
Your questions, answered
Everything people ask before they switch.
What is the fabric?
The fabric is 100% Bamboo Viscose. It has a silky feel: silkier than the highest thread-count Egyptian cotton, and 3x softer than cotton.
Will I sleep cooler than on cotton?
Cosy House 100% Bamboo Viscose scores 0.42 on the QMax cool-touch test. Cotton scores 0.11. Higher = cooler to the touch.
9/10 hot sleepers said they slept cooler in just 1 night.*
*Based on an independent survey conducted in 2026 (n=5,000).
What's in the $42 of gifts?
Every 100% Bamboo bed sheet order ships with a Sleep Mask ($25), Corner Straps ($4), a 2-Year Warranty ($7) and Free Shipping Protection ($6).
What is Free Shipping Protection?
It's one of your four free gifts with 100% Bamboo bed sheet orders, worth $6. It's a gift, so there's nothing extra to pay for it.
Can I pay with HSA/FSA?
Our 100% Bamboo Sheets are HSA/FSA eligible with Truemed, so you may be able to pay with pre-tax dollars. Truemed's short survey decides whether you qualify. Here's how it works:
Add your sheets to cart.
Choose Truemed at checkout and answer a short online survey.
Pay with your HSA/FSA card.
Many FSAs are use-it-or-lose-it at the end of the plan year (often Dec 31), so check your plan's deadline.
What if I don't love them?
You get 90 nights to try them in your own bed. If you don't feel the difference, send them back for a full refund. Fewer than 1% of customers ask for a refund.
Is the fabric certified?
Yes. Our fabric is OEKO-TEX® certified, which means it's tested for harmful substances.
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