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NATTCOOL™ SLEEP TECH

Sleep boxers

Sleep boxers

4.8
Rated 4.8 out of 5 stars
2,452 Reviews
Regular price £69.90
Regular price £0.00 Sale price £69.90

£0.19 a night

8x more breathable
3x faster dry
2x softer
Color: Navy blue
Size
8x more breathable
3x faster dry
2x softer
Size guide
Notify Me When Available

This sleep boxer is engineered to provide cooling comfort in a totally natural and sustainable way.

Recommended by sleep experts

With Dagsmejan’s cooling boxers you stay comfortable cool night and day:

  • 8x more breathable than cotton
  • Dries in 1/3 of the time
  • 2x softer than cotton

“Sleep, temperature and comfort are functionally linked. For a good night you need feel comfortable warm, not cold, nor hot. Dagsmejan Sleepwear implements two basic principle for a good night of sleep in one product: It helps you maintain the right temperature through the night and it fabric feels so comfortable that it is a
true pleasure and reward to wear.”
— Dr.  Roy Raymann, Sleep Neuroscientist and Ambulatory (Sleep) Technology expert, holding a PhD in Sleep &Thermoregulation

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 cooling sleep boxers

Care

  • Wash up to 40 degrees Celsius. Do not tumble dry. Do not bleach. Do not dry clean
  • You can also find the care instructions printed on the inside of the cooling underwear
  • Learn to care for super-fine natural fibres in our care guide

Natural & sustainable

Dagsmejan's cooling underwear feature NATTCOOL™ which 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
  • Garment making: Romania

Read more about Stay Cool

Fit & size

Fit:

  • Semi-fitted
  • Waistband width (M): 76cm (2' 5") +/- 6cm (2.4") per size
  • Inleg seam length (M): 11 cm (4") +/- 0.5cm (0.2") per size

Model information:

  • Alex is 185cm tall (6' 1") 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 pyjamas

  • The coolest sleep comfort

    The coolest sleep comfort

    The coolest sleep comfort

    Stay cool all night, every night with Dagsmejan's cooling pyjamas 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 pyjamas!

    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 pyjamas 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 pyjamas 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 pyjamas 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 pyjamas!

    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 pyjamas 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 pyjamas 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 2,452 reviews
Total 5 star reviews: 2.1k Total 4 star reviews: 273 Total 3 star reviews: 45 Total 2 star reviews: 6 Total 1 star reviews: 7
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
2,452 reviews
  • R
    Richard
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Pattern and material are awesome. They are not as long as shown however. But very comfortable all the same!

  • R
    Richard
    Reviewing
    T-shirt — NATTCOOL™
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Love it. The material and color are awesome and it’s so comfortable!

  • JR
    James R.
    Flag of Australia
    Verified Buyer
    Reviewing
    V-neck t-shirt — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    3 weeks ago
    Amazing for heatwaves

    Living through a hot summer in Australia these pyjamas really work to keep me cool.

    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
  • LP
    Lisa P.
    Flag of United States
    Verified Buyer
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    4 weeks ago
    Loves his PJs

    Tim loves his PJs . He had issues with night sweats, waking up to soaked sheets. These PJs have really made a difference. So much that we are about to order him a 3rd pair. He also likes the relaxed fit. So much that he is wearing them all the time. 😂

    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
    D Profile picture for Dagsmejan
    Dagsmejan
    3 weeks ago

    Dear Lisa,
    Thank you for your 5-star review.
    We are so happy that Tim is so satisfied with our products. It is always highly encouraging for us when our customers enjoy our products so much. We hope to welcome you back soon. - your Dagsmejan team

  • LD
    Lori D.
    Flag of United States
    Verified Buyer
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Schlafshorts

    Mein Mann liebt diese. Sie sind bequem und atmungsaktiv.