New
1 19

NATTCOOL™ SLEEP TECH

Short sleeve top

Short sleeve top

4.8
Rated 4.8 out of 5 stars
2,416 Reviews
$99.90
$0.00 $99.90

$0.27 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

Made for a cool night's sleep, designed for ultimate comfort.

The sleep benefits

Do you run warm at night? Stay dry and comfortable with this men’s cooling pajama top:

  • Advanced moisture-wicking technology dries three times faster than cotton
  • Offers 8x the breathability of cotton
  • Feels twice as smooth and soft as cotton

Product details & care

Details 

  • NATTCOOL™ fabric: 92% Microlyocell from eucalyptus and 8% Elastane/ Lycra 
  • A minimum of friction at night thanks to the flat ergonomic seams and slightly front placed side seams  
  • Tagless design, all care instructions are printed in the cooling pajamas top for women 

Care 

  • Wash up to 40 degrees Celsius. Do not tumble dry. Do not bleach. Do not dry clean 
  • Care instructions are printed on the inside of your women's cooling pajamas top 
  • Find out how to care for super-fine natural fibres in our care guide

Natural & sustainable

NATTCOOL™ is derived from eucalyptus trees and other plant-based fibers. Dagsmejan uses wood and pulp from sustainably managed forests and plantations. Eucalyptus consumes 20 times less water than cotton and requires five times less fertile land. Dagsmejan collaborates with Lenzing, a pioneer in sustainable and ethical fiber manufacturing.

  • 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:

  • Loose-fitted
  • Chest width (M): 113 cm (44.5″) +/- 6 cm (2.4″) per size
  • Body length (M): 74 cm (29.1") +/- 1 cm (0.4″) per size

Model information:

  • Emilio in Navy Blue, Mountain Torrent is 184cm (6’) and wears size M
  • Malik in Coastal Blue, Azure Torrent is 188cm (6’2″) 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 2,416 reviews
Total 5 star reviews: 2.1k Total 4 star reviews: 272 Total 3 star reviews: 43 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
Write a Review (Opens in a new window)
2,416 reviews
  • D
    Dayna
    Reviewing
    T-shirt — NATTCOOL™
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Husband loves his new jammies! Now no more gym shorts to bed!

    Was this helpful?
  • JB
    John B.
    Flag of Ireland
    Verified Buyer
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    My sleep type I always have the right temperature
    Rated 5 out of 5 stars
    2 weeks ago
    Mr

    Very comfortable and comfortable but expensive.

    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?
  • RP
    Robert P.
    Flag of United States
    Verified Buyer
    Reviewing
    T-shirt — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 4 out of 5 stars
    2 weeks ago
    Very comfortable and cool.

    I enjoy the coolness of this top and love the material. For a large it is a little snug. Would get an XL next time, and try the pajama top button down. Frankly I still get warm and remove it during the night… though glad to have it.

    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?
  • MI
    Malcolm I.
    Flag of United Kingdom
    Verified Buyer
    Reviewing
    T-shirt — NATTCOOL™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    2 weeks ago
    It works...

    It fits well, looks good and does what it says it will!

    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?
  • DQ
    Deirdre Q.
    Flag of Ireland
    Verified Buyer
    Reviewing
    Shorts — NATTCOOL™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    3 weeks ago
    Nattcool Sleepwear

    Excellent nightwear - best material ever.

    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?