CoolSleep: the most efficient
mattress cooler

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CoolSleep

fall asleep deeper en faster

CoolSleep

two temperatures one bed

CoolSleep

is sustainable vs. A/C unit

CoolSleep Conditioner 30ml

CoolSleep Conditioner 30ml

CoolSleep Conditioner 30ml

Efficient mattress cooler (12°C – 48°C) designed for hot sleepers to fall asleep faster and stay refreshed all night.

€5,00
Sale price  €5,00 Regular price 
CoolSleep Freedom Hose

CoolSleep Freedom Hose

CoolSleep Freedom Hose

Efficient mattress cooler (12°C – 48°C) designed for hot sleepers to fall asleep faster and stay refreshed all night.

€95,00
Sale price  €95,00 Regular price 
CoolSleep Mattress Cooler

CoolSleep Mattress Cooler

CoolSleep Mattress Cooler

Efficient mattress cooler (12°C – 48°C) designed for hot sleepers to fall asleep faster and stay refreshed all night.

€765,99
Sale price  €765,99 Regular price  €899,00
CoolSleep™ Set

CoolSleep™ Set

CoolSleep™ Set

Efficient mattress cooler (12°C – 48°C) designed for hot sleepers to fall asleep faster and stay refreshed all night.

€865,99
Sale price  €865,99 Regular price 

The mattress cooler that keeps you fresh on warm nights

CoolSleep is a smart water cooled system that precisely regulates the temperature of your mattress between 12°C and 48°C. It is highly effective yet whisper quiet. The comfy and user-friendly design with cooling mesh mattress pad fits perfectly on any bed.

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CoolSleep helps you fall asleep more easily and sleep more deeply

Simply set the ideal temperature. 

CoolSleep helps you fall asleep more easily on warm nights, after exercise, and during times of stress. The ideal sleeping environment is different for everyone. With CoolSleep, you can set the temperature in bed to perfectly suit your body and your sleeping needs. For most people, the optimal sleeping temperature is around 18 to 19 degrees Celsius,We recommend using a sleeping app to monitor your improvements on sleep quality.

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CoolSleep Mattress Cooler keeps you cool on hot nights

It makes you look forward to go to bed

CoolSleep is a smart water cooled system that precisely regulates the temperature of your mattress between 12°C and 48°C. It is highly effective yet whisper quiet. The comfy and user-friendly design with cooling mesh mattress pad fits perfectly on any bed.

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CoolSleep

Fit your temperature

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CoolSleep: Prevent Night Sweats

Finally, Sleep faster and uninterrupted

No more worrying about waking up in the middle of the night soaked in sweat. Keep your mattress clean and dry, and set the sleeping temperature in your bed to a level that’s comfortable for you. By regulating the temperature, the humidity in your bed also stays at an ideal level. Every morning, your bed will be fresh and clean, so you wake up full of energy.

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Try risk free for 30 nights

3 years warranty

Dutch company

Fast delivery

Real voices:

Here's what our community says after more than 6 months of using CoolSleep

meet our community

"Top product This mattress has helped me a lot with warmth in winter and coolness in summer. And that has given me a much better sleep pattern. I wouldn't want to be without it."

Anneke

"Better nights with the mattress cooler Last year, I bought the mattress cooler. I'm someone who gets hot quickly at night (very quickly) and it gets incredibly hot in my house in the summer. The mattress cooler is a real godsend. Even my Whoop shows that I sleep and recover better when I sleep with the mattress cooler. Easy to use and reasonably quiet. Highly recommended!"

Nikita

"I've had the KOZ-E Sleep mattress topper for 9 months now and I'm really happy with it. What an improvement! No more suffering from the heat at night; it keeps the temperature just right. I can recommend it to everyone."

Mark

hot sleepers

I often find it too warm in bed.

meet CoolSleep

Sleep disorders due to overheating

At night, I often toss and turn in bed

meet coolSleep

Alternatives to air conditioning for cooling the bedroom

I am looking for air conditioning alternative for sleeping room

meet CoolslSleep

Powerful yet whisper-quiet

Comfortable and easy

Sleep well, no radiation in bed

Fits every bed

Compact and effortless ,fits every bed

A soft cooling pad to stay comfortable all night

We've got you covered. Whether you've got a single mattress, a small double, or a king-size bed, our cooling mattress toppers are 90cm width. With CoolSleep, you'll sleep cool and comfy no matter what size bed you've got.

  • Our high-performance water-cooling system removes excess body heat.
  • Ultra-quiet for an undisturbed night's sleep.
  • Comfortable soft pad
  • Pre-assembled long straps that fit every mattress
  • Large water tank with low water alert
  • Long lasting design
  • Can also be used in winter: it also heats during cold nights
more CoolSleep beneifts

"As a sleep researcher I know that being too hot or too cold is one of the main issues for people to sleep well. Especially sleep onset latency is negatively affected; it takes longer to fall asleep if it is warm or cold in bed. That’s why in 2023 I’ve tested the KOZ-E sleep. We see that the product performs well from a functional point of view; both cooling and warming works well and is comfortable. It can help you fall asleep more easy and better during a heatwave or a cold winter."

Geert

GEERT DOORSLAG

Sleep researcher Koningklijke, Auping

Geert Doorlag is researcher at Royal Auping and focuses on two strategic topics: sleep and sustainability. Trained at the Technical University of Delft as an Industrial Designer (MSc 2008), he has been working at Auping since 2009, first as a product developer, then as a test and validation engineer and in recent years as a researcher.