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NATTWARM™ SLEEP TECH

Long sleeve top

Long sleeve top

4.9
Rated 4.9 out of 5 stars
2,012 Reviews
£109.90
£114.90 £109.90

£0.30 a night

4x more breathable
2x softer
50% lighter warmth
Color: Dark grey melange
Size
4x more breathable
2x softer
50% lighter warmth
Size guide
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This lightweight, breathable merino wool pyjama top will keep you comfortably warm without ever overheating.

Recommended by sleep experts

Sleep better by staying comfortably warm without ever overheating. Experience the luxurious sleep comfort of nature's finest performance fibres.

  • 4x more breathable than cotton
  • With superior moisture transport, merino wool can absorb up to 35% of it's weight in moisture
  • Anti-bacterial and anti-smell

"Optimal thermoregulation and breathability are important factors for deep and restful sleep. Dagsmejan pyjamas keep our body in the ideal climatic comfort zone and take sleep to a new level."— Dr. Martin Schlott, Chief Physician for Anaesthesia and Intensive Care Medicine and Sleep Coach

Product details & care

Details

  • NATTWARM™ fabric: 38% merino wool, 56% Lyocell from eucalyptus and 6% elastane/ spandex makes this the best thermal mens pyjamas
  • 100% traceable, mulesing-free NATIVA™ merino wool
  • Cosy over-thumb sleeves and 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 warming garment

Care

  • Wash your merino sleepwear in up to 30 degrees Celsius. Do not tumble dry. Do not bleach
  • You can also find the care instructions printed on the inside of your garment
  • Learn to care for super-fine natural fibres in our care guide

Natural & sustainable

NATTWARM™ fabric is made of a blend of nature’s
performance fibres, that give you the ultimate breathable, warm sleepwear. Eucalyptus fibres for breathable softness. Luxury merino wool
for comfort and warmth. We use NATIVA™ 100% traceable, mulesing-free merino wool from certified farms in Uruguay. 

  • Merino wool: Uruguay
  • Eucalyptus fibres: Europe and Asia
  • Sleep technology: Switzerland
  • Spinning of the yarn: Austria
  • Knitting and dyeing of the fabric: Lithuania
  • Garment making: Lithuania

Read more about Stay Warm

Fit & size

Fit:

  • Semi-fitted
  • Chest width (M): 100 cm (3' 3″) +/- 6 cm (2.4″) per size
  • Body length (M): 75 cm (2' 5″) +/- 1 cm (0.4″) per size

Model information:

  • Ben in Blue Melange and Winter night melange is 184cm tall (6') and wears size M
  • Alex in Dark grey melange, Black and Emerald is 185 cm tall (6' 1") and wears size M
  • Christoph in Chocolate melange is 184cm (5′ 12”) 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 merino pyjamas

  • Breathable, featherlight warmth

    Breathable, featherlight warmth

    Breathable, featherlight warmth

    Want to stay warm without ever overheating? Discover what the most comfortable merino pyjamas for men can do for your sleep comfort.

    - 50% lighter warmth than other thermal sleepwear
    - 4x more breathable than cotton
    - 2x softer than cotton

    Read more

  • NATTWARM™ Technology

    NATTWARM™ Technology

    NATTWARM™ Technology

    The NATTWARM™ fabric offers ultra light warmth. Against fabrics such as cotton and bamboo, NATTWARM™ is more warming than textiles up to 50% heavier. Studies show that we can sleep up to 15 minutes longer with merino sleepwear by falling asleep faster and enjoying a deeper sleep.

    Read more

  • Luxurious blend of merino wool and eucalyptus

    Luxurious blend of merino wool and eucalyptus

    Luxurious blend of merino wool and eucalyptus

    NATTWARM™ is made of a blend of performance fibres, that give you breathable, warm sleepwear. Eucalyptus fibres for softness and merino for comfortable warmth. We use NATIVA™ 100% traceable, mulesing-free merino wool from certified farms in Uruguay. 

    Read more

  • Developed with our experts

    Developed with our experts

    Developed with our experts

    "Body temperature and sleep are inseparably linked, the right temperature is essential for good sleep. Dagsmejan’s sleepwear support the nightly changes in body temperature and thereby naturally improve sleep."

    - Dr. Christine Blume, Sleep Researcher

    Read more

  • Breathable, featherlight warmth

    Want to stay warm without ever overheating? Discover what the most comfortable merino pyjamas for men can do for your sleep comfort.

    - 50% lighter warmth than other thermal sleepwear
    - 4x more breathable than cotton
    - 2x softer than cotton

    Read more

  • NATTWARM™ Technology

    The NATTWARM™ fabric offers ultra light warmth. Against fabrics such as cotton and bamboo, NATTWARM™ is more warming than textiles up to 50% heavier. Studies show that we can sleep up to 15 minutes longer with merino sleepwear by falling asleep faster and enjoying a deeper sleep.

    Read more

  • Luxurious blend of merino wool and eucalyptus

    NATTWARM™ is made of a blend of performance fibres, that give you breathable, warm sleepwear. Eucalyptus fibres for softness and merino for comfortable warmth. We use NATIVA™ 100% traceable, mulesing-free merino wool from certified farms in Uruguay. 

    Read more

  • Developed with our experts

    "Body temperature and sleep are inseparably linked, the right temperature is essential for good sleep. Dagsmejan’s sleepwear support the nightly changes in body temperature and thereby naturally improve sleep."

    - Dr. Christine Blume, Sleep Researcher

    Read more

4.9
Rated 4.9 out of 5 stars
Based on 2,012 reviews
Total 5 star reviews: 1.8k Total 4 star reviews: 187 Total 3 star reviews: 28 Total 2 star reviews: 7 Total 1 star reviews: 8
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
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2,012 reviews
  • LS
    Lynn S.
    Flag of United States
    Verified Buyer
    Reviewing
    Gift set long pajamas — NATTWARM™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    2 days ago
    my husband was delighted

    I gave these to him for Christmas, and he was so pleased that I'm buying him another set for Valentine's Day. A great replacement for his ratty old sleepwear.

    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?
  • RM
    Rahul M.
    Flag of United States
    Verified Buyer
    Reviewing
    Pants cuff — NATTWARM™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    3 days ago
    Insanely comfy!

    Extremely comfortable and well made. Dry super quick on the hanger. I only wish there was an option of no plastic wrapping for the eco conscious. This is 2025, plastic packaging should be illegal.

    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?
  • KH
    Karen H.
    Flag of United States
    Verified Buyer
    Reviewing
    Shorts — NATTWARM™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    4 days ago
    Awesome!

    As a woman I wanted longer shorts so I had to get the men’s and they fit great and are super stretchy. I wouldn’t wear them out of the house due to how thin they are but they’re super comfortable

    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?
    D Profile picture for Dagsmejan
    Dagsmejan
    1 hour ago

    Dear Karen,
    Thank you very much for your wonderful feedback! We are so happy to hear this! We hope that you love your new sleepwear and can enjoy longer nights of better sleep! - Your Dagsmejan Team

  • CW
    Claire W.
    Flag of United Kingdom
    Verified Buyer
    Reviewing
    T-shirt — NATTWARM™
    I recommend this product
    My sleep type I'm often warm and sometimes sweat
    Rated 5 out of 5 stars
    5 days ago
    So soft and warm

    I've been trying to get my husband to invest in one of these for along time, I gave in and bought him one.

    He is now toasty and warm (he has hyperthyroidism) and looks lovely too!

    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?
    D Profile picture for Dagsmejan
    Dagsmejan
    1 hour ago

    Dear Claire,
    Thank you for your 5-star review.
    We are so happy that you and your husband are 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

  • SC
    Spencer C.
    Flag of United Kingdom
    Verified Buyer
    Reviewing
    Pants cuff — NATTWARM™
    I recommend this product
    My sleep type I'm sometimes warm and sometimes cold
    Rated 5 out of 5 stars
    1 week ago
    Awesome as always

    Quality and end product are great as always. Perfect

    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?
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