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NATTCOOL™ SLEEP TECH

T-shirt

T-shirt

4.8
Rated 4.8 out of 5 stars
1,584 Reviews
$95.90
$0.00 $95.90

$0.26 a night

8x more breathable
3x faster dry
2x softer
Color: Navy blue
Size
8x more breathable
3x faster dry
2x softer
Size guide
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This cooling sleep t-shirt is engineered for a cool sleep comfort even when the temperature rises.

The sleep benefits

Too hot to sleep? Experience a deeper and long sleep with the best cooling pajamas t-shirt for men.

  • 8x more breathable than cotton
  • NATTCOOL™ combines smooth softness with superior moisture management
  • Drying in 1/3 of the time of cotton

Product details & care

Details

  • NATTCOOL™ fabric: 92% Microlyocell from eucalyptus and 8% Elastane/ Lycra
  • Flat ergonomic seams and slightly front placed side seams mean that you have a minimum of friction at night
  • Tagless design, all care instructions are printed in the men' cooling sleep t-shirt

Care

  • Wash up to 40 degrees Celsius. Do not tumble dry. Do not bleach. Do not dry clean
  • The care instructions are printed on the inside of the men's sleep t-shirt
  • Learn to care for super-fine natural fibres in our care guide

Natural & sustainable

Made from eucalyptus trees and other cellulosic fibres NATTCOOL™ is not only exceptionally cooling but also exceptionally sustainable. The botanic fibres used by Dagsmejan comes from natural forests and sustainably managed plantations. Eucalyptus requires 20 x less water and 5x less high-quality farmland than cotton.We work with Lenzing, one of the most sustainable producers of fibres worldwide.  

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

Read more about Stay Cool

Fit & size

Fit:

  • Semi-fitted
  • Chest width (M): 102cm (3' 4″) +/- 6 cm (2.4″) per size
  • Body length (M): 75cm (2' 5″) +/- 1 cm (0.4″) per size

Model information:

  • Jan in Rainforest, Blue square and Blue marble is 178cm (5′ 10”) and wears size M
  • Dave in Navy Blue is 189cm tall (6' 2") and wears size M
  • Kail in Azur Blue and Arctic spring is 189cm (6’ 2”) and wears size M
  • Sebastien in others is 183cm tall (6′) and wears size M

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.

View full details

Sleep better with men's cooling pajamas

  • The coolest sleep comfort

    The coolest sleep comfort

    The coolest sleep comfort

    Stay cool all night, every night with Dagsmejan's cooling pajamas for men.

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

    Read more

  • NATTCOOL™ Technology

    NATTCOOL™ Technology

    NATTCOOL™ Technology

    This fabric cools you down and keeps you dry through moisture evaporation and transport. With great moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best men's cooling pajamas!

    Read more

  • Cooling eucalyptus

    Cooling eucalyptus

    Cooling eucalyptus

    NATTCOOL™ fabric is based on Eucalyptus. Eucalyptus is nature's 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 pajamas don't contribute to an adverse impact on the environment.

    Read more

  • 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 pajamas help us to cool down or warm up depending on our needs to sleep deeper for longer."

    — Dr. Lutz Graumann

    Read more

  • The coolest sleep comfort

    Stay cool all night, every night with Dagsmejan's cooling pajamas for men.

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

    Read more

  • NATTCOOL™ Technology

    This fabric cools you down and keeps you dry through moisture evaporation and transport. With great moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best men's cooling pajamas!

    Read more

  • Cooling eucalyptus

    NATTCOOL™ fabric is based on Eucalyptus. Eucalyptus is nature's 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 pajamas don't contribute to an adverse impact on the environment.

    Read more

  • 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 pajamas help us to cool down or warm up depending on our needs to sleep deeper for longer."

    — Dr. Lutz Graumann

    Read more

4.8
Rated 4.8 out of 5 stars
Based on 1,584 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 182 Total 3 star reviews: 27 Total 2 star reviews: 5 Total 1 star reviews: 6
98%would recommend these products
Sleep comfort with Dagsmejan?Rated 4.8 on a scale of 1 to 5
Helps to regulate temperature and moisture?Rated 4.7 on a scale of 1 to 5
How is the sizing?Rated 0.1 on a scale of minus 2 to 2
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1,584 reviews
  • JW
    John W.
    Flag of United Kingdom
    Verified Buyer
    Sleep boxers — NATTCOOL™
    Reviewing
    Sleep boxers — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    1 month ago
    Cool Boxers

    The sleep boxers are very comfortable and very cool. You almost feel like you haven’t got them on!

    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?
  • MS
    Mihir S.
    Flag of United States
    Verified Buyer
    Sleep boxers — NATTCOOL™
    Reviewing
    Sleep boxers — NATTCOOL™
    I recommend this product
    My sleep type I always have the right temperature
    Rated 5 out of 5 stars
    1 month ago
    Very comfortable

    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 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • GT
    George T.
    Flag of United States
    Verified Buyer
    Shorts — NATTCOOL™
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    1 month ago
    Great Sleeping Short

    Very soft

    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?
  • DG
    David G.
    Flag of United States
    Verified Buyer
    Shorts — NATTCOOL™
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    1 month ago
    Very comfortable / cooling shorts

    I was skeptical when I researched these shorts and the shirts as I am a very hot sleeper / sweat frequently and haven't' found "cooling" sleepwear that says what it does. I have finally found it. These shorts (and the t shirt) are amazing. They really do regulate your body heat and absorb any sweat so you never wake up soaking with any sweat. These truly are a gamechanger for me and I will be buying more soon. I acknowledge the price is definitely a little high for sleepwear but the results are there if you need clothing that does a better job at regulating your body temp.

    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?
  • GC
    GILL C.
    Verified Buyer
    Reviewing
    T-shirt — NATTCOOL™
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Cool Shortie Pyjamas

    Bought as a present for my son who used to wear the Under Armour Sleepwear (which is now discontinued) and he is delighted with them.

    Was this helpful?
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