• Merino Nightgown || Purple Melange
  • Merino Nightgown || Purple Melange
  • Merino Nightgown || Purple Melange
  • Merino Nightgown || Purple Melange
  • Merino nightgown || Winter night melange
  • Merino nightgown || Winter night melange
  • Merino nightgown || Winter night melange
  • Merino nightgown || Winter night melange
  • Merino nightgown || Winter night melange
  • Merino Nightgown || VELVET BERRY
  • Merino Nightgown || VELVET BERRY
  • Merino Nightgown || VELVET BERRY
  • Merino Nightgown || VELVET BERRY
  • Merino Nightgown || VELVET BERRY
  • Merino nightgown || Dark grey melange
  • Merino nightgown || Dark grey melange
  • Merino nightgown || Dark grey melange
  • Merino nightgown || Dark grey melange

NATTWARM™ SLEEP TECH

Night dress long

Night dress long

4.9
Rated 4.9 out of 5 stars
243 Reviews
$198.00
$0.00 $198.00

$0.54 a night

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

Wrap yourself up in the ultimate warmth with this luxurious merino nightdress.

The sleep benefits

Cold at night? Stay cozy warm all night for the ideal sleep with this warm nightgown.

  • The same warmth as other fabrics 50% heavier
  • Lightweight warmth: 4x more breathable than cotton
  • Superior moisture transport absorbing and holding twice as much moisture as cotton

"Dagsmejan offers a luxurious sleepwear experience that prioritizes comfort and quality- exactly what you need for sleep. The fabric is soft and very breathable with moisture-wicking properties so important for women having hormonal fluctuations.  I wear tops and bottoms that work well for sleeping and transitioning to comfy loungewear for a lazy Saturday morning. It's a five-star experience!" — Dr. Wells, Sleep and obesity medicine physician and founder of Super Sleep MD. 

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

Testing institutes: EMPA | Testex

Product details & care

Details

  • NATTWARM™ fabric: 38% wool, 56% lyocell and 6% elastane/ lycra
  • 100% traceable, mulesing-free NATIVA™ merino wool
  • 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 stay warm nightgown

Care

  • Wash your merino nightgown 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 stay warm nightdress
  • 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 night dress. 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 and Portugal
  • Garment making: Lithuania and Romania
  • Certification: NATIVA™

Read more about Stay Warm

Fit & size

Fit:

  • Semi-fitted
  • Chest width (S): 98 cm (3' 3″) +/- 6 cm (2.4″) per size
  • Body length (S): 137 cm (4' 6″) +/- 1 cm (0.4″) per size

Model information:

  • Sophia is 177cm (5′ 9″) and wears size S

    • 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 USD.

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

    View full details

    Sleep better with merino pajamas women

    • Breathable, featherlight warmth

      Breathable, featherlight warmth

      Breathable, featherlight warmth

      Discover what the softest, most comfortable merino pajamas for women can do for your sleep comfort, keeping you comfortably warm without overheating. 

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

      Read more

    • NATTWARM™ Technology

      NATTWARM™ Technology

      NATTWARM™ Technology

      NATTWARM™ fabric has been engineered to offer ultra light warmth. Tested against fabrics such as cotton, bamboo, and synthetics, NATTWARM™ is more warming than textiles up to 50% heavier making it ideal as merino wool sleepwear for women.

      Read more

    • Luxurious blend of merino wool and eucalyptus

      Luxurious blend of merino wool and eucalyptus

      Luxurious blend of merino wool and eucalyptus

      NATTWARM™ fabric is made of a blend of performance fibres; eucalyptus fibres for breathable softness and luxury merino wool for comfort and 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

      Discover what the softest, most comfortable merino pajamas for women can do for your sleep comfort, keeping you comfortably warm without overheating. 

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

      Read more

    • NATTWARM™ Technology

      NATTWARM™ fabric has been engineered to offer ultra light warmth. Tested against fabrics such as cotton, bamboo, and synthetics, NATTWARM™ is more warming than textiles up to 50% heavier making it ideal as merino wool sleepwear for women.

      Read more

    • Luxurious blend of merino wool and eucalyptus

      NATTWARM™ fabric is made of a blend of performance fibres; eucalyptus fibres for breathable softness and luxury merino wool for comfort and 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

    4.9
    Rated 4.9 out of 5 stars
    Based on 243 reviews
    Total 5 star reviews: 224 Total 4 star reviews: 13 Total 3 star reviews: 5 Total 2 star reviews: 0 Total 1 star reviews: 1
    98%would recommend this product
    Sleep comfort with Dagsmejan?Rated 4.9 on a scale of 1 to 5
    Helps to regulate temperature and moisture?Rated 4.8 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)
    243 reviews
    • S
      Stacey
      Flag of United States
      Verified Buyer
      Reviewing
      Night dress long — NATTWARM™
      I recommend this product
      My sleep type I'm often cold
      Rated 4 out of 5 stars
      1 week ago
      Long night dress. Warm wear

      I one hundred percent agree with Jan T. and prefer the long nightgown without the flapping slits half was up the side. It allows cold air and also is less attractive. I also miss the option of thumb hole, but mostly I dislike the slits on both slide of gown. Please return to previous style which was much nicer and more attractive and functional.

      Sleep comfort with Dagsmejan?Rated 5.0 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 0.0 on a scale of minus 2 to 2
      Was this helpful?
    • JT
      Jan T.
      Flag of United States
      Verified Buyer
      Reviewing
      Night dress long — NATTWARM™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 4 out of 5 stars
      3 weeks ago
      Bring back last years model

      We love Dagsmejan's fabrics, technology, style and products. The 2025 NATTWARM long night dress unfortunately has slits that extend up past the knee. The lower skirt flaps about and my legs are cold. I had to sew the slits closed for 75% of their length.

      Additionally, the sleeve cuffs no longer have cosy thumb holes.

      Please bring back last year's design.

      Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5
      Helps to regulate temperature and moisture?Rated 3.0 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?
    • DM
      Darlene M.
      Flag of United States
      Verified Buyer
      Reviewing
      Night dress long — NATTWARM™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 5 out of 5 stars
      1 month ago
      Love this night dress

      Had already loved the shorter version, but with the frigid temperatures opted for a longer version and it did not disappoint. Absolutely love the softness of the fabric and how it perfectly regulates my temperature at night.

      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?
    • JT
      Jan T.
      Flag of United States
      Verified Buyer
      Reviewing
      Night dress long — NATTWARM™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 5 out of 5 stars
      1 month ago
      Comfortable and cosy

      Great cut. The smaller slits on this design are a plus for the winter

      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?
    • SH
      Sarah H.
      Flag of Canada
      Verified Buyer
      Reviewing
      Night dress long — NATTWARM™
      I recommend this product
      My sleep type I'm sometimes warm and sometimes cold
      Rated 5 out of 5 stars
      1 month ago
      I'm addicted to these night dresses!

      This is my 5th night dress- they are so comfortable & worth the expense! They are great to travel with as they take up minimal space in your bag and are light to transport yet warm when needed. The cut is very flattering and fabric feels nice on the skin. What a great product!

      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?

    FAQ's

    What is a warm nightgown?
    A warm nightgown is a cozy sleep dress designed to retain heat and keep you comfortable during colder nights. Dagsmejan’s warm nightgowns use ultra-fine merino wool for natural insulation without overheating.

    Are there good options for winter nightgowns that aren’t bulky?
    Yes! The Dagsmejan Stay Warm Sleep Dress offers lightweight warmth with a sleek, breathable design—perfect for winter without the bulk of traditional flannel or fleece.

    What makes a winter night dress different from regular sleepwear?
    A winter night dress is made with insulating fabrics like merino wool to regulate your body temperature and help you stay warm and dry throughout the night, especially during colder months.

    Is this a wool nightgown?
    Yes, the Stay Warm Sleep Dress is crafted from a blend of ultra-fine merino wool and TENCEL™. This combination delivers warmth, moisture control, and a soft, itch-free feel.

    Why choose a warm night gown over pajamas?
    A warm night gown offers full coverage and freedom of movement while still keeping your body warm—ideal for those who prefer a looser, dress-style alternative to
    pants-based pajamas.

    Are there stylish winter night gowns available?Absolutely. Dagsmejan’s winter night gown combines modern design with Swiss textile technology, offering a stylish silhouette with high-performance thermal comfort.

    Is this a good night gown for winter travel or colder climates?
    Yes, it’s a great option for travel and winter stays. It’s lightweight, warm, and easy to pack, making it perfect for chilly hotel rooms or mountain cabin getaways.

    Where can I buy warm nightgowns online in the USA?You can purchase premium warm nightgowns like the Dagsmejan Stay Warm Sleep Dress directly from
    dagsmejan.com, with fast and reliable shipping across the USA.