The coolest sleep comfort
NATTCOOL™ SLEEP TECH
Slip dress
Slip dress
$0.40 a night
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Too hot to sleep? This feather-light cooling sleep slip dress is 8x more breathable than cotton.
The sleep benefits
The sleep benefits
If you are a hot sleeper then this cooling nightgown is the sleep aid you have been looking for.
- Smoother than silk
- 2x softer than cotton
- Superior moisture transport, drying in 1/3 of the time of cotton
- 8x more breathability than cotton
“As a woman that sometimes struggles with night sweats and fluctuations in the bedroom temperature, I welcomed the idea of pjs that are soft and comfortable. I’ve enjoyed sleeping without waking up due to excessive sweating or overheating. The fabric is very comfortable and soft and the style is flattering and works really well” –Dr. Funke Afolabi- Brown, triple board-certified sleep medicine physician
Testing protocol: Flat testing | Torso testing | Real-life wear testing
Product details & care
Product details & care
Details
- NATTCOOL™ fabric: 92% lyocell and 8% elastane/ lycra
- 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 nightgown
Care
- Wash 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 the cooling nightdress
- Learn to care for super-fine natural fibres in our care guide
Natural & sustainable
Natural & sustainable
NATTCOOL™ is made from eucalyptus trees and other cellulosic fibres. Wood and pulp used by Dagsmejan comes from natural forests and sustainably managed plantations. Eucalyptus needs 20 times less water than cotton and 5 times less high-quality farmland. Dagsmejan uses fibres from Lenzing, one of the most sustainable and ethical producers of any fibres worldwide.
- Eucalyptus fibres: Europe and Africa
- Sleep technology: Switzerland
- Knitting and dyeing of the fabric: Switzerland, Italy & Austria
- Garment making: Romania
- Certification: FSC
Fit & size
Fit & size
Fit:
- Semi-fitted
- Chest width (S): 82cm (2' 8″) +/- 6cm (2.4″) per size
- Body length (S): 76cm (2' 5″) +/- 1.5cm (0,6″) per size
Model information:
Free returns & comfort guarantee
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.

Size Guide
| SIZE | XS | S | M | L | XL | 2XL |
| EU/DE/CH | 34-36 | 36-38 | 38-40 | 42-44 | 46 | 48 |
| Chest | 79.5-84.5 | 85.5-89.5 | 90.5-95 | 96-101 | 102-107 | 108-113 |
| Waist | 63.5-68.5 | 69.5-73.5 | 74.5-79 | 80-85 | 86-91 | 92-97 |
| Hip | 87.5-92.5 | 93.5-97.5 | 98.5-102.5 | 103.5-107.5 | 108.5-112.5 | 113.5-117.5 |
| Inleg length | 78 | 78 | 78 | 78 | 78 | 78 |
| SIZE | XS | S | M | L | XL | 2XL |
| US | 4-6 | 6-8 | 8-10 | 12-14 | 16 | 18 |
| UK | 8-10 | 10-12 | 12-14 | 16-18 | 20 | 22 |
| Chest | 31.3-33.3 | 33.7-35.2 | 35.6-37.4 | 37.8-39.8 | 40.2-42.1 | 42.5-44.5 |
| Waist | 25-27 | 27.4-28.9 | 29.3-31.1 | 31.5-33.5 | 33.9-35.8 | 36.2-38.2 |
| Hip | 34.4-36.4 | 36.8-38.4 | 38.8-40.4 | 40.7-42.3 | 42.7-44.3 | 44.7-46.3 |
| Inleg length | 30.7 | 30.7 | 30.7 | 30.7 | 30.7 | 30.7 |
| SIZE | S | M | L | XL | 2XL |
| EU/DE/CH | 46-48 | 50 | 52-54 | 56 | 58-60 |
| Chest | 91-97 | 98-103 | 104-109 | 110-115 | 116-121 |
| Waist | 80.5-85.5 | 86.5-90.5 | 91.5-96 | 97-102 | 103-108 |
| Hip | 94.5-99.5 | 100.5-104.5 | 105.5-109.5 | 110.5-114.5 | 115.5-119.5 |
| Inleg length | 82.5 | 83 | 83.5 | 84 | 84.5 |
| SIZE | S | M | L | XL | 2XL |
| US/UK | 36-38 | 40 | 42-44 | 46 | 48-50 |
| Chest | 35.8-38.2 | 38.6-40.6 | 40.9-42.9 | 43.3-45.3 | 45.7-47.6 |
| Waist | 31.7-33.7 | 34-35.6 | 36-37.8 | 38.2-40.2 | 40.6-42.5 |
| Hip | 37.2-39.2 | 39.6-41.1 | 41.5-43.1 | 43.5-45.1 | 45.5-47 |
| Inleg length | 32.5 | 32.7 | 32.9 | 33.1 | 33.3 |
Sleep better with women's cooling pajamas
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The coolest sleep comfort
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NATTCOOL™ Technology
NATTCOOL™ Technology
Cool down and stay dry through moisture evaporation & transport. With exceptional moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best women's cooling pajamas!
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Cooling eucalyptus
Cooling eucalyptus
NATTCOOL™ fabric is based on Eucalyptus — an environmentally friendly high tech fibre. Requiring up to 20x less water and 5x less farm land than cotton. Sleep easy knowing that these super soft eucalyptus pajamas don't contribute to an adverse impact on the environment.
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Recommended by sleep experts
Recommended by sleep experts
"Thermoregulation is key for good sleep. To fall asleep and enjoy a deep, restorative sleep we need our body temperature to drop. I recommend Dagsmejan; their pajamas help us to cool down or warm up depending on our needs to sleep deeper for longer."
— Dr. Lutz Graumann
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The coolest sleep comfort
Stay cool all night with our cooling women's pajamas —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 -
NATTCOOL™ Technology
Cool down and stay dry through moisture evaporation & transport. With exceptional moisture management and temperature regulating properties compared to other fibres such as cotton, bamboo and synthetic fabrics. No more night sweats with the best women's cooling pajamas!
-
Cooling eucalyptus
NATTCOOL™ fabric is based on Eucalyptus — an environmentally friendly high tech fibre. Requiring up to 20x less water and 5x less farm land than cotton. Sleep easy knowing that these super soft eucalyptus pajamas don't contribute to an adverse impact on the environment.
-
Recommended by sleep experts
"Thermoregulation is key for good sleep. To fall asleep and enjoy a deep, restorative sleep we need our body temperature to drop. I recommend Dagsmejan; their pajamas help us to cool down or warm up depending on our needs to sleep deeper for longer."
— Dr. Lutz Graumann
SLEEP IN IT, LOVE IT OR RETURN IT
- JMJean M. L.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm often coldRated 5 out of 5 stars17 seconds agoPerfect for warm summer nights
Love my slip dress. It feels like next to nothing on and looks great.
Helps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5I'm too warm/ cold/ sweaty I'm very comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs small True to size Runs largeSleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - DDDeborah D.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars2 months agoLove My Slip Dress!
Love it ~ the comfort. the color, the style!
Helps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5I'm too warm/ cold/ sweaty I'm very comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs small True to size Runs largeSleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - KHKelly H.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars4 months agoLoving it so far!
It's been comfy and has helped me not feel as hot as I have with other brands.
Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentHelps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5I'm too warm/ cold/ sweaty I'm very comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs small True to size Runs largeWas this helpful? - GSGabriela S.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm often warm and sometimes sweatRated 5 out of 5 stars5 months agoNo other nightgown anymore
The pajamas are so comfortable to wear, they feel so soft, and I no longer wake up drenched in sweat! I already have several models because I don't wear any other nightgown anymore. I really recommend them.
Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentHelps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5I'm too warm/ cold/ sweaty I'm very comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs small True to size Runs largeWas this helpful?Dagsmejan4 months agoDear Ms. Staub, thank you for your review. We're delighted to hear that you sleep well in your Dagsmejan and already own several models. We also thank you for taking the time to share your experience with others and hope to welcome you back to our online shop soon. - Your Dagmejan Team
- MDMarie-Louise D.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm often warm and sometimes sweatRated 5 out of 5 stars5 months agoCool nights
The nattcool negligee is very comfortable to wear. It feels almost silky on the skin. I already have two of them. I also really like the color selection. Dagsmejan forever!
Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentHelps to regulate temperature and moisture?Rated 5.0 on a scale of 1 to 5I'm too warm/ cold/ sweaty I'm very comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs small True to size Runs largeWas this helpful?