CoolSleep
High cooling capacity reaching 12degrees
CoolSleep
Whisper-Quiet Performance and Flexible Placement
CoolSleep
Comfortabel and easy setup, Fits any bed.
Are you looking for Air Conditioning alternative?
Try to cool your body instead of the entire room
Are you tired of the drawbacks of traditional air conditioning? The high energy bills, the morning headaches from cold, dry air, and the struggle with difficult installations? Technology is constantly evolving, and you’ve probably wondered: isn't there another way to cool my bedroom? You are not alone. There is a better way to cool your body during those sweltering summer nights. It’s time to experience deep, restful sleep—without the noise, the dry air, and the high costs of traditional air conditioning.
The most efficient cooling system for bedroom
Mattress cooler that turns your bed into a fresh haven
CoolSleep: Better comfort cooling than any air conditioner or fan
The more comfortable and energy-efficient cooling solution: The CoolSleep™ Mattress cooler
Koz-e CoolSleep is the ideal air conditioner alternative for cooling down at those sweltering summer nights. With our high capacity cooling mattress topper, you can lower your bed's temperature by up to 12 °C. CoolSleep system actively draws excess heat away from your body while remaining whisper-quiet. Experience undisturbed, deeper sleep at your prefect comfortable temperature and wake up to a fresh morning.
Comfortable and effortless, fits every bed
All you need to do is let your body feel the coolness
CoolSleep: The Energy-Saving Cooling Solution for Warm summer Nights
Save on energy costs and cooling only your body is enough for a perfect night's sleep
Water is the most powerful resource for healthy cooling. Unlike air conditioners that move dry, recycled air, KOZ-E CoolSleep uses the natural conductivity of water to draw heat away from your body. It is not only healthier for your skin and airways, it is also significantly more energy saving, With an energy consumption of only 1.2 kWh per night, CoolSleep uses seven times less electricity than a standard air conditioner. Let’s be honest—why cool an entire room when you can achieve the same effect with just a little water? Reduce your carbon footprint and save on energy costs. With CoolSleep, you can sleep peacefully with a clear conscience.
Reduce your energy bill
CoolSleep mattress cooler : The Most Efficient Low Power Bedroom Cooling & Heating
Wake up refreshed: no more dry throat or headaches
The mattress cooler to fall asleep cool on warm nights, no cold air blowing on your skin, wake up fresh, no dry throat and irritated eyes
Do you often wake up with a dry throat? There's a good chance you sleep with the air conditioning on in your room. An air conditioner is the most commonly used solution for cooling your bedroom. Traditional air conditioners work by removing moisture from the air to lower the temperature. This often leads to a dry throat, irritated eyes, and a stuffy nose in the morning, CoolSleep is different, Because it cools your mattress with a closed water system, it doesn’t affect the humidity in your room. Keep your bedroom’s air quality intact. No dry, recycled air blowing on your face all night. Avoid the 'AC-headache' and wake up feeling hydrated and refreshed.Ideal for those who suffer from allergies or respiratory sensitivity to dry air.
Wake up feeling hydrated and refreshed
Try CoolSleep, Risk-free: Test it out for 30 nights in your own bed.
Is the bedroom too warm in summer and too cold in winter to sleep comfortably?
KOZ-E CoolSleep offers the perfect climate: it cools in the summer and warms in the winter.
Whether you live in a highly insulated new-build that traps summer heat, or a classic older home that struggles with winter drafts, we all face the same challenge: an uncomfortable bedroom temperature. Traditional air conditioning is often too expensive to install or simply not an option for older buildings. Let’s be honest: how many hours a day do you actually spend in your bedroom? During the day, you move around, you're at work, or you're active. But when it’s time to sleep, the only temperature that truly matters is the one in your bed. By regulating your mattress instead of the entire room, you stay perfectly comfortable all year round. You no longer have to rely on heavy blankets or expensive air conditioning. It is the smartest way to take control of your environment—targeting only the space you actually use."
Try it at home for 30 nights. Not satisfied? Money refund.
Improve deep sleep: Why cool sleeping is vital for your health
The Koz-e CoolSleep is your personal sleep system
Cool sleeping is critical for your health because it aligns with your body's natural nightly temperature drop, facilitating a faster, deeper, and more restorative sleep cycle. With KOZ-E CoolSleep, you can continuously adjust the temperature from 12°C to 48°C, tailored specifically to your body's needs. A good night’s rest is the foundation of a healthy life, and our system is designed with one purpose: to help you achieve the best sleep possible. Stronger Immune System: Your body repairs itself more effectively when it’s cool. Sharper Memory: Deep sleep is where your brain processes and stores information.Better Concentration: Wake up with the mental clarity you need for the day ahead. Uninterrupted Cycles: Avoid the 'midnight wake-up' caused by overheating.
Trusted by sleep experts, covered by a 3-year warranty.
The cooling power of water
Experience the natural efficiency of a water-cooled sleep system for thermal regulation, from 12°C to 48°C.
With Koz-e CoolSleep, you have total control over your bed climate with simple operation from your bed. The whisper-quiet mattress cooling unit next to your bed cycling cooled water in the mattress pad, making it the most effective water-cooled mattress solution, So no electricity or radiation under the covers, just the cooling power of water.
Are you ready for CoolSleep nights?
Try it out and see how it affects your deep sleep:
- Try risk free for 30 nights
- 3 years warranty
- Dutch company
- Fast delivery
CoolSleep mattress cooler
€735.00
Efficient mattress cooler (12°C – 48°C) designed for hot sleepers to fall asleep faster and stay refreshed all night.
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 35 inches wide. With CoolSleep, you'll sleep cool and comfy no matter what size bed you've got.
Would you like to learn more KOZ-E CoolSleep?
- Ease of use
- Reliability
- Comfort
Real voices:
Here's what our community says after more than 6 months of CoolSleep
"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
What does a sleep expert say?
"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.
Finally: your sleep fresh during the summer warm nights without worrying your energy bill.
It makes you look forward to go to bed
At KOZ-E, our passion is your health. We strive for innovation to restore the well-being you deserve.
Are you ready for CoolSleep?
Try it out and see how it affects your deep sleep
CoolSleep Mattress cooler FAQ
What is a good alternative to air conditioning in the bedroom?
While AC cools the air, it consumes massive amounts of power and can be noisy. A water-cooled mattress topper like CoolSleep is the smartest alternative. Instead of cooling the entire room, it draws heat directly away from your body using water. It is 7x more energy-efficient, whisper-quiet, and doesn't circulate dust or dry air.