Sleep mask

NATTCOOL™ SLEEP TECH
£42.90

Same as £0.11 a night for 365 nights

Rated 4.5 out of 5
Based on 60 reviews
Color: White

Lightweight, super soft and breathable the Dagsmejan Stay Cool sleep mask keep the light out whilst keeping your head cool all night long for a deeper, undisturbed sleep. Combining NATTCOOL™ fabric from high-tech Eucalyptus with a silk filling for the ultimate smooth, cooling night comfort.

Size Guide Ruler
  • Superior moisture transport, dries in 1/3 of the time of cotton.
  • 8x more breathable than cotton
  • Main fabric: NATTCOOL™ fabric, 92% Microlyocell from eucalyptus and 8% Elastane/ Lycra Padding: 100% sustainable silk

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

- Free delivery on all orders over 100 GDP
- Easy returns, free of charge from the UK (as well as Europe, the US and Canada)
- 14 days sleep comfort guarantee. Sleep in it, if you don't like it you can send it back without any cost!

Read more

sleep better with women's cooling sleepwear

The coolest sleep comfort

Light, breathable cooling pyjamas

Stay cool all night with Dagsmejan's cooling pyjamas for women —Softer than silk, cooler than linen and better moisture management than cotton.  

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

READ MORE

NATTCOOL™ TECHNOLOGY

The best cooling pyjamas for women

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 temperature regulating properties compared to other natural fibres such as cotton and bamboo as well as synthetic fabrics. So you don't need to worry about night sweats even when the temperature rises. That's what makes it the best cooling nightwear for women!

READ MORE

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 that this super soft eucalyptus pajamas also don't contribute to an adverse impact on the environment.

Find out more about the journey from fibre to sleep. 

READ MORE

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

READ MORE

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 4.5 out of 5
Based on 60 reviews
  • 5 Stars
    39 Reviews
  • 4 Stars
    17 Reviews
  • 3 Stars
    3 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    1 Review
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
60 Reviews
Reviewed by Patricia S., 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?
  • sustainable production
  • comfort
  • temperature regulation
  • sleep better
  • natural material
Rated 5 out of 5
Review posted

Great mask

I like the way it fits. The nightgown, however is the wrong size. I accidentally ordered an Xsmall instead of a X-Large. I received this package the day I was moving. It has never been worn, tags are still in place. It has only been out of the box one time. I would really like to exchange it for my size. Please advise.

Loading...
Sleep comfort with Dagsmejan?
Rated 3 out of 5
Helps to regulate temperature and moisture?
Rated 3 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?

Dagsmejan United Kingdom

Dear Patricia. Thank you for your great feedback. We thank you for the time you have taken to write your review and are happy to hear the fit of the garment has met your expectations. Our sleep comfort guarantee is 14 days as of receipt of the goods. Since your Sleepshirt is however unworn and has all tags in place, we are more than happy to make an exception for you and can replace it with another size. Our Support Team will email you the return steps today—your Dagsmejan Team.

Reviewed by Gwendoline M., from Switzerland
Verified Buyer
I recommend this product
My sleep type
I'm sometimes warm and sometimes cold
Age Range
45 - 54
Why did you buy Dagsmejan?
  • sleep better
  • sustainable production
  • temperature regulation
  • moisture management
Rated 5 out of 5
Review posted

Super

When I have night duty it comes in use and is nice and soft to wear

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?
Reviewed by Samuel W., from Switzerland
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
35 - 44
Why did you buy Dagsmejan?
  • sleep better
Rated 5 out of 5
Review posted

Comfortable

the sleep mask is very comfortable and cozy. it blocks a lot of light and I sleep with it, because I am sensitive to light, a lot better. size is not perfect for my big head, after I stretched it with a clothes hanger, it fits very well.

Loading...
Sleep comfort with Dagsmejan?
Rated 4 out of 5
Helps to regulate temperature and moisture?
Rated 5 out of 5
How is the sizing?
Rated -1 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 Melanie R., from Switzerland
Verified Buyer
I recommend this product
My sleep type
I'm often warm and sometimes sweat
Age Range
35 - 44
Why did you buy Dagsmejan?
  • sleep better
Rated 4 out of 5
Review posted

Really darkens

The elastic band was a little too tight for me at first....

Loading...
Sleep comfort with Dagsmejan?
Rated 3 out of 5
Helps to regulate temperature and moisture?
Rated 3 out of 5
How is the sizing?
Rated -1 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 Tammy L., from Denmark
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?
  • sleep better
  • moisture management
  • comfort
  • design
  • natural material
Rated 5 out of 5
Review posted

lovely material- so soft!

When my warm sleep mask is too warm, using this "stay cool" one is used.

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 -1 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