Hot & cold at night?
NATTWELL™ SLEEP TECH
Sleepshirt long sleeve
Sleepshirt long sleeve
£0.38 a night
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Incredible softness paired with lightweight breathability for the most comfortable nights (& days) you can imagine. Taking lounging and sleeping to the next comfort level.
The sleep benefits
The sleep benefits
Never feel too hot or cold at night with the best sleepwear for night sweats. For extreme breathability and lightweight temperature regulation all night long.
- 6x more breathable than cotton
- 4x better at moisture management
- 2x softer than cotton
"Dagsmejan has created thermoregulating sleepwear that regulates your body temperature, looks great, and is super comfortable. I love wearing them because they really do keep your body temperature balanced and they're made sustainably, which is important to mewhen selecting products. Highly recommended." –Dr. Nishi Bhopal, Integrative Psychiatrist and Sleep Specialist
Testing protocol: Flat testing | Torso testing | Climate chamber | Real-life wear testing
Product details & care
Product details & care
Details
- NATTWELL™ fabric: 95% micro modal and 5 % 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 on the inside super soft nightgown
Care
- Wash up to 40 degrees Celsius. Do not tumble dry. Do not bleach. Do not dry clean
- Care instructions are printed on the inside of the garment
- Find out how to care for super-fine natural fibres in our care guide
Natural & sustainable
Natural & sustainable
The balance collection is made of beechwood coming from Austria and surrounding countries. The forests are sustainably grown and beechwood requires less land per tonne than cotton as well as 10-20x less water.
- Beechwood fibres: Austria and neighboring countries
- Sleep technology: Switzerland
- Yarn spinning: Austria
- Knitting and dyeing of the fabric: Germany & Austria
- Garment making: Portugal & Romania
- Certification: OEKO-TEX® STANDARD 100
Fit & size
Fit & size
Fit:
- Loose fit
- Chest width (S): 90 cm (3') +/- 6 cm (2.4″) per size
- Body length (S): 90 cm (2' 11″) +/- 2 cm (0.8″) 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 GBP.
Free gift packaging for all orders above 80 GBP, simply select "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 Balance breathable sleepwear
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Hot & cold at night?
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NATTWELL™ Technology
NATTWELL™ Technology
Extensive research allowed us to enhance the beechwood fibre—the core remains moisture absorbing, while the outer layer is adapted to make it water resistant and to repel moisture. This is what gives this collection revolutionary moisture management and temperature regulation properties.
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Natural beechwood fibre
Natural beechwood fibre
NATTWELL™ fabric is based on beechwood fibres that are soft on the skin and ecological. The fibre is extracted using Edelweiss® technology, a production process that is low on energy usage and other resources. The full production process is Oekotex certified to consider the environment.
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Recommended by sleep experts
Recommended by sleep experts
"My PhD investigated links between thermoregulation, sleep and insomnia, and I saw straight away that Dagsmejan sleepwear could balance one's environment with one's body."
— Professor Michael Gradisar
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Hot & cold at night?
Sleep better with the best breathable pyjamas for women—lightweight, breathable and exceptionally soft.
- 6x more breathable than cotton
- 4x better at drawing sweat away from the skin
- 2x softer than cotton -
NATTWELL™ Technology
Extensive research allowed us to enhance the beechwood fibre—the core remains moisture absorbing, while the outer layer is adapted to make it water resistant and to repel moisture. This is what gives this collection revolutionary moisture management and temperature regulation properties.
-
Natural beechwood fibre
NATTWELL™ fabric is based on beechwood fibres that are soft on the skin and ecological. The fibre is extracted using Edelweiss® technology, a production process that is low on energy usage and other resources. The full production process is Oekotex certified to consider the environment.
-
Recommended by sleep experts
"My PhD investigated links between thermoregulation, sleep and insomnia, and I saw straight away that Dagsmejan sleepwear could balance one's environment with one's body."
— Professor Michael Gradisar
SLEEP IN IT, LOVE IT OR RETURN IT
- STSamantha T.Verified BuyerReviewingSleepshirt long sleeve — NATTWELL™I recommend this productMy sleep type I'm often coldRated 5 out of 5 stars12 seconds agoLove It
So pleased I finally decided to order - my new sleep shirt of perfect. So soft and comfortable, and keeps me at perfect temperature every night.
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 5Poorly, I'm too warm/ cold/ sweaty Excellently—I'm comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - JGJennifer G.Verified BuyerReviewingSleepshirt long sleeve — NATTWELL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars2 days agoLove it so much I need to do laundry more often
I am loving this sleep shirt even more than I thought I would. I didn't fully understand why the arms were styled relatively snugly, but the reason is so they do not ride up during the night. It is very comfortable and it helps me regulate my body temperature much better. Now, if my arm is outside the covers I am still comfortable. I have a cotton long-sleeved sleep dress but the arms ride up and it doesn't regulate heat as well. I am going to buy a shirt and pants set, as on very cold nights I find myself wishing for something fully covering my legs.
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 5Poorly, I'm too warm/ cold/ sweaty Excellently—I'm comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - SKStephanie K.Verified BuyerReviewingSleepshirt long sleeve — NATTWELL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 4 out of 5 stars1 week agoAlmost perfect
Sleeping better with this shirt, which is a big win - better than either no shirt or Eberjay sleepshirt. The snug, extra long sleeves reduce waking up numb from arm coming out from under the duvet. Night sweats also less but still happen - I got a second of these and switch if I wake up in the middle of the night with it wet.
I’m a hot sleeper, so I wouldn’t go for the warming products but kinda wish this was just a drop thicker - primarily in the arms. And having to hang dry is annoying but at least it’s machine washable.
Basically - not perfect but the best I’ve found and good enough to have bought two
Sleep comfort with Dagsmejan?Rated 4.0 on a scale of 1 to 5Poor ExcellentHelps to regulate temperature and moisture?Rated 3.0 on a scale of 1 to 5Poorly, I'm too warm/ cold/ sweaty Excellently—I'm comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - JWJanet W.Verified BuyerReviewingSleepshirt long sleeve — NATTWELL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars1 week agoSo Comfortable!
I really am loving both the Long Sleeve and the Short Sleeve sleepshirts I purchased online. The material is just so cosy and comfortable without being heavy or bulky. It sort of like a dream that sleepwear could be this comfortable! Getting ready to purchase two more in different colors! I like the companies purpose and principles, including sustainability.
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 5Poorly, I'm too warm/ cold/ sweaty Excellently—I'm comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - CSCatherine S.Verified BuyerReviewingSleepshirt long sleeve — NATTWELL™I recommend this productMy sleep type I'm sometimes warm and sometimes coldRated 5 out of 5 stars3 weeks agoSo comfortable.
I love how soft and comfortable this night gown is to sleep in. Thought the long sleeves might be too warm, but not the case at all. Definitely would order again.
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 5Poorly, I'm too warm/ cold/ sweaty Excellently—I'm comfortableHow is the sizing?Rated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful?