• Cooling sleep mask || Coastal blue
  • Cooling sleep mask || Cool grey
  • Cooling sleep mask || Cool grey
  • Sleep mask || Spring blossom
  • || Spring blossom
  • Cooling sleep mask || Navy blue
  • Cooling sleep mask || Navy blue
  • Cooling sleep mask || Lavender
  • Cooling sleep mask || Lavender
  • Cooling sleep mask || Sage
  • Cooling sleep mask || Sage
  • || Azure blue
  • Sleep mask || Raspberry
  • Best cooling sleep mask || Purple
1 6

NATTCOOL™ SLEEP TECH

Sleep mask

Sleep mask

4.7
Rated 4.7 out of 5 stars
182 Reviews
£49.90
£49.90

£0.13 a night

8x more breathable
3x faster dry
2x softer
Color: Coastal blue
8x more breathable
3x faster dry
2x softer
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Lightweight and soft cooling sleep mask keeps the light out whilst keeping your head cool.

Recommended by sleep experts

Sleep cool and dark with the cooling sleep mask. Enjoy a deeper, undisturbed sleep and wake up your best you.

  • Superior moisture transport, drying in 1/3 of the time of cotton
  • 8x more breathable than cotton
  • 2x softer than cotton

“As a woman that sometimes struggles with night sweats and fluctuations in the bedroom temperature, I welcomed the idea of pjs that are soft and comfortable. I’ve enjoyed sleeping without waking up due to excessive sweating or overheating. The fabric is very comfortable and soft and the style is flattering and works really well” –Dr. Funke Afolabi- Brown, triple board-certified sleep medicine physician

Product details & care

Details

  • Main fabric: NATTCOOL™ fabric, 92% Microlyocell from eucalyptus and 8% Elastane/ Lycra
  • Padding: 100% sustainable cotton

Care

  • Handwash your cooling sleep mask. Do not tumble dry. Do not bleach. Do not dry clean
  • Learn to care for super-fine natural fibres in our care guide

Natural & sustainable

NATTCOOL™ is made from eucalyptus trees and other cellulosic fibres. Wood and pulp used by Dagsmejan comes from natural forests and sustainably managed plantations. Eucalyptus needs 20 times less water than cotton and 5 times less high-quality farmland. Dagsmejan uses fibres from Lenzing, one of the most sustainable and ethical producers of any fibres worldwide.

  • Eucalyptus fibres: Europe and Africa
  • Sleep technology: Switzerland
  • Knitting and dyeing of the fabric: Switzerland, Italy & Austria
  • Accessory making: Romania

Read more about Stay Cool

Fit & size

  • Fitted
  • One size fits all
  • Height: 10cm
  • Width: 20cm
  • Strap length (relaxed - non-stretched): 34cm

Free returns & comfort guarantee

Sleep in your Dagsmejan sleepwear for up to 14 days, if you don't love it return it for a full refund. Free returns from the US, the UK and the EU.

Free delivery for all orders above 150 USD.

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Sleep better with women's cooling pyjamas

  • The coolest sleep comfort

    The coolest sleep comfort

    The coolest sleep comfort

    Stay cool all night with our cooling women's pyjamas —Softer than silk, cooler than linen and better moisture management than cotton.

    - 8x more breathable than cotton 
    - Quick drying —dries in 1/3 of the time of cotton
    - Releases water vapour 60% better than cotton

    Read more about Stay Cool

  • NATTCOOL™ Technology

    NATTCOOL™ Technology

    NATTCOOL™ Technology

    Cool down and stay dry through moisture evaporation & transport. With exceptional moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best women's cooling pyjamas!

    Read more

  • Cooling eucalyptus

    Cooling eucalyptus

    Cooling eucalyptus

    NATTCOOL™ fabric is based on Eucalyptus — an environmentally friendly high tech fibre. Requiring up to 20x less water and 5x less farm land than cotton. Sleep easy knowing that these super soft eucalyptus pyjamas don't contribute to an adverse impact on the environment.

    Read more about eucalyptus

  • Developed with our experts

    Developed with our experts

    Developed with our experts

    "Thermoregulation is key for good sleep. To fall asleep and enjoy a deep, restorative sleep we need our body temperature to drop. I recommend Dagsmejan; their pyjamas help us to cool down or warm up depending on our needs to sleep deeper for longer."

    — Dr. Lutz Graumann

  • The coolest sleep comfort

    Stay cool all night with our cooling women's pyjamas —Softer than silk, cooler than linen and better moisture management than cotton.

    - 8x more breathable than cotton 
    - Quick drying —dries in 1/3 of the time of cotton
    - Releases water vapour 60% better than cotton

    Read more about Stay Cool

  • NATTCOOL™ Technology

    Cool down and stay dry through moisture evaporation & transport. With exceptional moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best women's cooling pyjamas!

    Read more

  • Cooling eucalyptus

    NATTCOOL™ fabric is based on Eucalyptus — an environmentally friendly high tech fibre. Requiring up to 20x less water and 5x less farm land than cotton. Sleep easy knowing that these super soft eucalyptus pyjamas don't contribute to an adverse impact on the environment.

    Read more about eucalyptus

  • Developed with our experts

    "Thermoregulation is key for good sleep. To fall asleep and enjoy a deep, restorative sleep we need our body temperature to drop. I recommend Dagsmejan; their pyjamas help us to cool down or warm up depending on our needs to sleep deeper for longer."

    — Dr. Lutz Graumann

4.7
Rated 4.7 out of 5 stars
Based on 182 reviews
Total 5 star reviews: 136 Total 4 star reviews: 37 Total 3 star reviews: 8 Total 2 star reviews: 0 Total 1 star reviews: 1
97%would recommend these products
Sleep comfort with Dagsmejan?Rated 4.7 on a scale of 1 to 5
Helps to regulate temperature and moisture?Rated 4.6 on a scale of 1 to 5
How is the sizing?Rated 0.0 on a scale of minus 2 to 2
Write a Review (Opens in a new window)
182 reviews
  • RJ
    Rebeka J.
    Flag of Switzerland
    Verified Buyer
    Reviewing
    Black-out sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm often cold
    Rated 5 out of 5 stars
    1 month ago
    Darkens

    Makes it really nice and dark, doesn't make your eyes "hot", doesn't cause pressure points, very comfortable material, size is easy to adjust.

    Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5
    How is the sizing?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • LB
    Leander B.
    Flag of Germany
    Verified Buyer
    Reviewing
    Sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 4 out of 5 stars
    1 month ago
    Good product

    The mask is comfortable to wear, but is a bit tight. For the price, I would have liked nicer packaging. Even though the mask is well made and does what it promises, it doesn't seem that high quality because it's just delivered in a cheap plastic bag. It's a shame, especially as a gift.

    Sleep comfort with Dagsmejan?Rated 4.0 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5
    How is the sizing?Rated -1.0 on a scale of minus 2 to 2
    Was this helpful?
  • RB
    René B.
    Flag of Switzerland
    Verified Buyer
    Reviewing
    Black-out sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I always have the right temperature
    Rated 5 out of 5 stars
    1 month ago
    Very pleasant

    Feels good

    Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 4.0 on a scale of 1 to 5
    How is the sizing?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • UK
    Urs K.
    Flag of Switzerland
    Verified Buyer
    Reviewing
    Sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    2 months ago
    Super comfortable!

    A very comfortable sleep mask to wear, now indispensable!

    Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 4.0 on a scale of 1 to 5
    How is the sizing?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • KG
    Kai G.
    Flag of Germany
    Verified Buyer
    Reviewing
    Sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I always have the right temperature
    Rated 5 out of 5 stars
    3 months ago
    Best..

    The best sleep mask I've ever had, worth the money.

    Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5
    How is the sizing?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?