• Cooling sleep mask || Coastal blue
  • Cooling sleep mask || Cool grey
  • Cooling sleep mask || Cool grey
  • 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
  • Best cooling sleep mask || Purple
  • Sleep mask || Raspberry
1 5

NATTCOOL™ SLEEP TECH

Sleep mask

Sleep mask

4.7
Rated 4.7 out of 5 stars
151 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.

The sleep benefits

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

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 151 reviews
Total 5 star reviews: 113 Total 4 star reviews: 30 Total 3 star reviews: 7 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
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151 reviews
  • BM
    bonnie M.
    Flag of United States
    Verified Buyer
    Black-out sleep mask — NATTCOOL™
    Reviewing
    Black-out sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    4 months ago
    The BEST sleep mask ever!!

    Love this mask because it fits perfectly and blocks out all the light and is extremely comfortable!!

    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?
  • RS Profile picture for Regina S.
    Regina S.
    Flag of United States
    Verified Buyer
    Sleep mask — NATTCOOL™
    Reviewing
    Sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    5 months ago
    Best sleep mask I've ever had!

    As an Olympic athlete I'm always traveling and sharing rooms with my teammates-- this sleep mask is the comfiest and softest mask I've ever had and works wonder to block out any ambient light! Super cute and soft. Highly, highly recommend.

    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?
    D Profile picture for Dagsmejan
    Dagsmejan
    5 months ago

    Dear Regina,
    Thank you for your review.
    We are so happy that you enjoy better sleep with our sleep mask. High-quality products, that offer maximum comfort are very important to us and that you can feel the Dagsmejan-difference is very encouraging for us. We hope to welcome you back soon. - your Dagsmejan team

  • MM
    Mary MacKinnon B.
    Flag of United States
    Verified Buyer
    Sleep mask — NATTCOOL™
    Reviewing
    Sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    6 months ago
    I love it!

    Love it ! Comfy and helps me sleep in when i need to.

    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?
  • FG
    Falk G.
    Flag of Germany
    Verified Buyer
    Black-out sleep mask — NATTCOOL™
    Reviewing
    Black-out sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    12 months ago
    Great pants

    The mask must be an absolute blessing. My girlfriend travels a lot by plane and night buses. In combination with your in-ear noise canceling headphones, you can sleep perfectly anywhere as not a bit of light penetrates.

    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?
  • ME
    Marion Eve S.
    Flag of United States
    Verified Buyer
    Black-out sleep mask — NATTCOOL™
    Reviewing
    Black-out sleep mask — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    1 year ago
    Everything it claims to be!

    I am very picky about eye masks! A lot of them smash your eyeballs, or let light in, or are heavy. This one you can sleep in (on your side) you can adjust the eye cups as well as the size around your head. This is pricey but worth it! I'm buying another! Material is very comfortable!

    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 -1.0 on a scale of minus 2 to 2
    Was this helpful?
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