The coolest sleep comfort
NATTCOOL™ SLEEP TECH
Slip dress
Slip dress
$0.38 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
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
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 and the EU.
Free delivery for all orders above 150 USD.






































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
- KHKarla H.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars15 seconds agoLove it!
This little nighty is super comfy! I am wearing it every night this summer. I love the way it feels, the way it stretches and the way it looks. The purple one allows me to go without undies because it is not see through. I've even worn it to go outside in the garden in front of my home first thing in the morning when dog walkers are going by. I couldn't be happier with this purchase.
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? - ASAlice S.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm often coldRated 5 out of 5 stars1 month agoNightgown
Love this nightgown. Beautiful soft fabric.
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? - BBBroca B.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 4 out of 5 stars1 month agoAwesome albeit pricy
Love this slip dress. It’s short. Would love an inch more length. Really comfortable. Whoa price tag.
Sleep comfort with Dagsmejan?Rated 5.0 on a scale of 1 to 5Poor ExcellentHelps to regulate temperature and moisture?Rated 4.0 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? - LBLeAnn B.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm often warm and sometimes sweatRated 5 out of 5 stars2 months ago5 Stars – So Comfortable and Cooling!
This is my first slip dress from NATTCOOL and my second piece of their sleepwear—and I’m officially hooked. It’s incredibly comfortable, helps me sleep better, and does a great job of managing moisture when I get hot at night. The quality is excellent and it feels durable. Highly recommend for anyone looking for cool, breathable sleepwear. I’ll definitely keep purchasing more!
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?DDagsmejan2 months agoDear LeAnn,
thank you for your positive review of our products.We are delighted to have you as one of our loyal customers and that you have already tested our BALANCE and STAY COOL collection.
We are pleased to hear that you sleep better in your Dagsmejan sleepwear and look forward to welcoming you back to our webshop soon.
Kind regards - Your Dagsmejan Team
- AEAndrea E.Verified BuyerReviewingSlip dress — NATTCOOL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars5 months agoTop negligee!
No sweating at night. Pleasant fabric, comfortable cut. Great color. I can recommend it wholeheartedly♥️
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?