-25%
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Chocolate melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || Dark grey melange
  • Thermal pajamas mens || VELVET BERRY
  • Thermal pajamas mens || VELVET BERRY
  • Thermal pajamas mens || VELVET BERRY
  • Thermal pajamas mens || VELVET BERRY
  • Thermal pajamas mens || Sage Mist Melange
  • Thermal pajamas mens || Sage Mist Melange
  • Thermal pajamas mens || Sage Mist Melange
  • Thermal pajamas mens || Sage Mist Melange

NATTWARM™ SLEEP TECH

Long sleeve top

Long sleeve top

£86.25 GBP
£115.00 GBP £86.25 GBP

£0.23 a night

Sale Sold out
product features 4x more breathable
product features 2x softer
product features 50% lighter warmth
Color: Chocolate melange
Size
product features 4x more breathable
product features 2x softer
product features 50% lighter warmth

This lightweight, breathable merino wool pyjama top will keep you comfortably warm without ever overheating.

The sleep benefits

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
  • Naturally 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

Testing protocol: Flat testing | Torso testing | Real-life wear testing

Testing institutes: EMPA | Testex

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
  • Certification: NATIVA™

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:

  • Christoph 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, CH and the EU.

    Free delivery for all orders above 150 GBP.

    Free gift packaging for all orders above 80 GBP, simply select "Dagsmejan premium box" at checkout.

    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

    • Recommended by sleep experts

      Recommended by sleep experts

      Recommended by sleep 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

    • Recommended by sleep 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

    FAQ's

    What is the best wool pajama top for men?
    A great wool pajama top for men combines warmth, breathability, and comfort. The Dagsmejan Stay Warm Long Sleeve is made with ultra-fine merino wool, offering natural insulation without overheating.

    Is this a warm pajama top for men suitable for cold weather?
    Absolutely. Designed specifically for cold nights, this men’s warm pajama long sleeve helps regulate body temperature while keeping you cozy and dry.

    What makes this long sleeve wool pajama top ideal for sleep?
    Unlike traditional wool, this top is crafted from lightweight, itch-free merino wool blended with eucalyptus fibers. It’s soft against the skin, temperature-regulating, and moisture-wicking—perfect for a restful night’s sleep.

    What are the benefits of merino wool in men’s sleepwear?
    Merino wool naturally wicks moisture, resists odors, and keeps you warm without making you sweat. It's ideal for men seeking a breathable, warm pajama top.

    Are there matching warm pajama bottoms for men?
    Yes, Dagsmejan offers Stay Warm Sleep Pants for men that pair perfectly with the long sleeve pajama top for full-body warmth and comfort.