• cooling pajama t-shirt v-neck || Coastal blue
  • cooling pajama t-shirt v-neck || Coastal blue
  • cooling pajama t-shirt v-neck || Coastal blue
  • cooling pajama t-shirt v-neck || Coastal blue
  • cooling t-shirt v-neck || Navy blue
  • cooling t-shirt v-neck || Navy blue
  • cooling t-shirt v-neck || Navy blue
  • cooling t-shirt v-neck || Navy blue

NATTCOOL™ SLEEP TECH

V-neck t-shirt

V-neck t-shirt

4.8
Rated 4.8 out of 5 stars
58 Reviews
$99.90
$0.00 $99.90

$0.27 a night

Sale Sold out
product features 8x more breathable
product features 3x faster dry
product features 2x softer
Color: Coastal blue
Size
product features 8x more breathable
product features 3x faster dry
product features 2x softer

Designed for ultimate coolness even as the temperatur rises.

The sleep benefits

Too hot to sleep? This cooling sleep t-shirt will let you sleep cool and sound.

  • 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% lyocell and 8% elastane/ lycra
  • No friction at night with flat ergonomic seams and slightly front placed side seams  
  • No tags, no irritation. All care instructions are printed on the inside of the cooling sleep t-shirt 

Care 

  • Wash up to 40 degrees Celsius. Do not tumble dry. Do not bleach. Do not dry clean 
  • Care instructions can be found on the inside of the cooling pajamas t-shirt 
  • Find out more about caring for super-fine natural fibres in our care guide

Natural & sustainable

NATTCOOL™ is made from eucalyptus trees and other botanic fibres. The fibres are derived from sustainably managed plantations as well as natural forests. We work with one of the most sustainably and ethical producers of fibres, Lenzing. The eucalyptus fibres used require 20 times less water than cotton does and up to 5 times less farmland.

  • Eucalyptus fibres: Europe and Asia
  • Sleep technology: Switzerland
  • Knitting and dyeing of the fabric: Portugal & Austria
  • Garment making: Romania

Read more about Stay Cool

Fit & size

Fit:

  • Semi-fitted
  • Chest width (M): 104 cm (41″) +/- 6 cm (2.4″) per size
  • Body length (M): 73 cm (28.7") +/- 1 cm (0.4″) per size

Model information:

  • Emilio is 184cm (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 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

    • Recommended by sleep experts

      Recommended by sleep experts

      Recommended by sleep 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

    • Recommended by sleep 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 58 reviews
    Total 5 star reviews: 49 Total 4 star reviews: 8 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
    98%would recommend this product
    Sleep comfort with Dagsmejan?Rated 4.8 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 0.1 on a scale of minus 2 to 2
    Write a Review (Opens in a new window)
    58 reviews
    • 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 months 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
      Was this helpful?
    • MO
      Mark O.
      Flag of United Kingdom
      Verified Buyer
      Reviewing
      V-neck t-shirt — NATTCOOL™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 5 out of 5 stars
      3 months ago
      Great product

      Very comfortable to sleep in. Washes up well and you can tumble dry….!

      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?
    • AC
      Antonio C.
      Flag of Switzerland
      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
      5 months ago
      Good quality fits comfortably

      It feels like a second skin. I can really recommend it. The price is high in my opinion but the comfort is good.

      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?
    • TM
      Ted M.
      Flag of United States
      Verified Buyer
      Reviewing
      V-neck t-shirt — NATTCOOL™
      I do not recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 2 out of 5 stars
      5 months ago
      Nice, but runs small. Fits too tight. Uncomfortable.

      I normally wear a size L, but this is too tight and uncomfortable to sleep in. Top runs small. Very disappointed considering the VERY high price. Will give it to my wife to wear.

      Sleep comfort with Dagsmejan?Rated 1.0 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 -2.0 on a scale of minus 2 to 2
      Was this helpful?
    • J
      Jann
      Flag of Switzerland
      Verified Buyer
      Reviewing
      V-neck t-shirt — NATTCOOL™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 5 out of 5 stars
      6 months ago
      Comfortable fabric

      Wears well.

      Sleep comfort with Dagsmejan?Rated 4.0 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 1.0 on a scale of minus 2 to 2
      Was this helpful?