SLEEP T-SHIRT MEN

NATTCOOL™ SLEEP TECH
$89.90 USD

Same as $0.24 USD a night for 365 nights

Rated 4.8 out of 5
Based on 480 reviews

Engineered for a cool sleep comfort even when the temperature rises. 8x more breathable than cotton, NATTCOOL™ combine smooth softness with superior moisture management. Sleep easy in the best cooling pajamas top for men.

Color: Navy blue
Size:
Size Guide Ruler
  • Superior moisture transport, dries in 1/3 of the time of cotton
  • 8x more breathable than cotton— this cooling pajamas t-shirt is engineered to keep you sleeping well even as the temperature rises
  • Raglan sleeve for a natural range of movement
  • 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 sleepwear
  • NATTCOOL™ fabric: 92% Microlyocell from eucalyptus and 8% Elastane/ Lycra

Wash your cooling sleep shirt in up to 40 degrees Celsius. Do not tumble dry. Do not bleach.

Sizing: The model is 189cm tall (6' 2") and wears size M

  • Width chest (M): 102cm (40.2″) +/- 6 cm (2.4″) per size

  • Length back (M): 73cm (28.7″) +/- 1 cm (0.4″) per size

Sleep better with cooling sleepwear

The coolest sleep comfort

Light, breathable cooling pyjamas

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

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NATTCOOL™ TECHNOLOGY

THE ULTIMATE COOLING SLEEP AID

Not just a moisture wicking pajamas Dagsmejan's cooling sleepwear works on two levels to provide unrivalled night comfort. The NATTCOOL™ fabric has been specially engineered to cool you down through gradual moisture evaporation and to keep you dry through exceptional moisture transport.  NATTCOOL™ has shown exceptional moisture management and breathability compared to other natural fibres such as cotton and bamboo as well as synthetic fabrics. That's what makes it the best men's cooling pajamas!

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COOLING EUCALYPTUS FOR A BETTER SLEEP

SUSTAINABLY AND ETHICALLY MADE IN EUROPE

NATTCOOL™ fabric is based on Microlyocell a natural micro fibre from Eucalyptus. Microlyocell truly is nature's high tech fibre; it's cooler than linen, it’s better than cotton at moisture management and even softer than silk. It’s also a fibre that is exceptionally environmentally friendly, so you can sleep easy knowing this cooling sleepwear isn't contributing to an adverse impact on the environment.

Find out more about the journey from fibre to sleep. 

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DEVELOPED WITH OUR EXPERTS

RESEARCH BASED, SCIENTIFICALLY PROVEN

"Thermoregulation is key for a good night's sleep. To fall asleep and to enjoy a deep, restorative sleep we need for our core body temperature to drop. That is why I recommend sleepwear by Dagsmejan; they help us to cool down or warm up depending on our needs so that we can sleep deeper for longer."

Lutz Graumann, Phd & specialist in sports medicine, nutrition and chirotherapy

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Sleep comfort guarantee

sleep in it, love it or return it

Sleep in your Dagsmejan cooling sleepwear for up to 2 weeks, if you don’t love it you can return it for a full refund. A good night’s sleep is risk-free with Dagsmejan.

Product Reviews
average rating 4.8 out of 5
Based on 480 reviews
  • 5 Stars
    406 Reviews
  • 4 Stars
    57 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    2 Reviews
98% of reviewers would recommend this product to a friend
Sleep comfort with Dagsmejan?
Rated 4 out of 5
Helps to regulate temperature and moisture?
Rated 4 out of 5
How is the sizing?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
480 Reviews
Reviewed by Mandy F., from United Kingdom
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
45 - 54
Why did you buy Dagsmejan?
  • sleep better
  • natural material
  • temperature regulation
  • moisture management
  • comfort
Rated 4 out of 5
Review posted

Eye mask

This is a good eye mask which is very comfortable to wear and the material feels lovely and soft. My head doesn’t feel hot when wearing it. I’ve only given it 4 stars as it’s a little large on me

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Sleep comfort with Dagsmejan?
Rated 4 out of 5
Helps to regulate temperature and moisture?
Rated 4 out of 5
How is the sizing?
Rated 2 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Was this helpful?
Reviewed by Adam F C., from United States
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
45 - 54
Why did you buy Dagsmejan?
  • temperature regulation
Rated 5 out of 5
Review posted

Great Quality and does what it says

If you like to sleep cool this is a great product. The quality and material is first class

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Sleep comfort with Dagsmejan?
Rated 5 out of 5
Helps to regulate temperature and moisture?
Rated 5 out of 5
How is the sizing?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Was this helpful?
Reviewed by John A., from United States
Verified Buyer
I recommend this product
My sleep type
I'm sometimes warm and sometimes cold
Age Range
55 - 64
Why did you buy Dagsmejan?
  • natural material
  • temperature regulation
  • moisture management
  • comfort
Rated 5 out of 5
Review posted

Super good!

Light, great texture sleeping shorts! Wake up rested and smiling!

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Sleep comfort with Dagsmejan?
Rated 5 out of 5
Helps to regulate temperature and moisture?
Rated 5 out of 5
How is the sizing?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Was this helpful?
Reviewed by Lynne M., from United States
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
55 - 64
Why did you buy Dagsmejan?
  • temperature regulation
  • sleep better
  • moisture management
Rated 5 out of 5
Review posted

Cool sleeping

I bought both the shirt and shorts and was happy with my purchase - I stayed nice and cool and slept well.

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Sleep comfort with Dagsmejan?
Rated 5 out of 5
Helps to regulate temperature and moisture?
Rated 5 out of 5
How is the sizing?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Was this helpful?
Reviewed by Lynne M., from United States
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
55 - 64
Why did you buy Dagsmejan?
  • temperature regulation
  • moisture management
Rated 5 out of 5
Review posted

Cool sleeping

Very comfortable and I stayed nice and cool!

Loading...
Sleep comfort with Dagsmejan?
Rated 5 out of 5
Helps to regulate temperature and moisture?
Rated 5 out of 5
How is the sizing?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Was this helpful?

Product FAQ

How long does the benefits of the Stay cool sleepwear last?

The benefits of the Stay cool sleepwear are permanent and won’t wash away. So you can sleep easy not only tonight but for many more nights to come with your summer pajamas.

How have the benefits of Dagsmejan cooling sleepwear been confirmed in testing?

Independent testing has proven the unique benefits of NATTCOOL™ fabric, this include flat testing and torso testing by EMPA, a Swiss federal institution for innovation in materials & science.

What natural fibres do you use in your cooling sleepwear?

NATTCOOL™ fabric: 92% Microlyocell from eucalyptus and 8% Elastane

How can wash and care for my cooling pajamas?

Wash your cooling nightwear in 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 your garment.

How can I find the right size for me?

Check out our size guide and if you have any questions you can always contact us at info@dagsmejan.com