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NATTCOLLAGEN™ SLEEP TECH

Long sleeve loose fit top

Long sleeve loose fit top

$155.00 USD
$155.00 USD

$0.42 a night

Sale Sold out
product features beauty sleep. clinically proven.
product features +40% skin hydration in 4 weeks
product features healthier & more radiant skin
Color: Noirberry
Size
product features beauty sleep. clinically proven.
product features +40% skin hydration in 4 weeks
product features healthier & more radiant skin

Lightweight and luxuriously soft, this collagen-infused long sleeve top supports skin moisture and ensures deeper, undisturbed rest.

The sleep benefits

Sleep in comfort. Wake up with skin that looks smoother and more radiant. The Night Renew collection is crafted to support your skin’s natural overnight regeneration while helping you sleep deeply and comfortably. With clinically tested and dermatologically proven NATTCOLLAGEN™, collagen-infused botanic fibres help support skin hydration and elasticity throughout the night:

  • +40% skin hydration
  • +12% smoother skin texture
  • Dermatest 5-star seal
  • 100% would recommend

“Nighttime is when our skin’s natural regeneration processes are most active, making it the ideal moment to support hydration and renewal.
In a clinical and dermatological study, participants wearing NATTCOLLAGEN™ sleepwear showed a significant increase in skin hydration (+40%) and improved skin refinement (pores), as confirmed by corneometry and Antera 3D measurements. The products were awarded the Dermatest 5-star seal for skin friendliness, underlining their excellent compatibility and efficacy.”
— Dr. med. Werner Voss, Specialist in Dermatology, Venereology, Allergology, Phlebology and Environmental Medicine

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

Testing institutes: EMPA | Testex | Dermatest

Product details & care

Details 

  • NATTCOLLAGEN™ fabric: 47.5% lyocell, 47.5% viscose 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 inside the sleep top 

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 the garment
  • Learn to care for super-fine natural fibres in our care guide

Natural & sustainable

Night Renew is made from botanic fibres combined with NATTCOLLAGEN™ Technology, where marine collagen peptides are permanently embedded inside the fibre itself. Unlike surface coatings that can fade or wash away, these collagen peptides are locked into the polymer structure of the yarn before the fabric is even knitted. Dagsmejan sources wood and pulp from sustainably managed forests and plantations. Permanent infusion — The collagen peptides are part of the yarn, so they won’t wash out. Naturally sourced — Derived from marine collagen peptides and integrated into the spinning solution during fibre production.

  • Eucalyptus fibres: Europe and Africa
  • Sleep technology: Switzerland
  • Knitting and dyeing of the fabric: Portugal
  • Garment making: Romania

Read more about Night Renew

Fit & size

Fit:

  • Loose-fitted
  • Chest width (S): 127 cm (50″) +/- 5 cm (2″) per size for XS - M, +/- 6 cm (2.4″) per size for L - XXL
  • Body length (S): 67 cm (26.5″) +/- 1 cm (0.4″) per size

Model information:

  • Kseniia is 175cm (5′ 8″) 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

    • Improved skin regeneration, improved sleep

      Improved skin regeneration, improved sleep

      Improved skin regeneration, improved sleep

      Wake up to smoother, more radiant skin — naturally. The Night Renew collection is designed to enhance your skin’s overnight regeneration while ensuring the ultimate comfort for restorative sleep:

      • +40% skin hydration
      • +12% smoother skin texture

      Read more benefits

    • NATTCOLLAGEN™ Technology

      NATTCOLLAGEN™ Technology

      NATTCOLLAGEN™ Technology

      Skincare-inspired technology, built into the fabric. With marine collagen peptides permanently embedded into the fibre itself, NATTCOLLAGEN™ Technology helps create a breathable, moisture-balancing microclimate at skin level.

      Read more technology

    • Collagen peptides and eucalyptus

      Collagen peptides and eucalyptus

      Collagen peptides and eucalyptus

      Night Renew combines botanic eucalyptus fibres with naturally derived collagen peptides. Together, they help regulate temperature and moisture, supporting more skin hydration overnight and all-night comfort.

      Read more about collagen and eucalyptus

    • Clinically tested and verified

      Clinically tested and verified

      Clinically tested and verified

      NATTCOLLAGEN™ received the 5-star seal from Dermatest®, an independent dermatology testing institute in Münster, Germany.

      This seal is only given for tests where excellent skin compatibility can be guaranteed and standards of clinical testing are met.

      More about the testing

    • Improved skin regeneration, improved sleep

      Wake up to smoother, more radiant skin — naturally. The Night Renew collection is designed to enhance your skin’s overnight regeneration while ensuring the ultimate comfort for restorative sleep:

      • +40% skin hydration
      • +12% smoother skin texture

      Read more benefits

    • NATTCOLLAGEN™ Technology

      Skincare-inspired technology, built into the fabric. With marine collagen peptides permanently embedded into the fibre itself, NATTCOLLAGEN™ Technology helps create a breathable, moisture-balancing microclimate at skin level.

      Read more technology

    • Collagen peptides and eucalyptus

      Night Renew combines botanic eucalyptus fibres with naturally derived collagen peptides. Together, they help regulate temperature and moisture, supporting more skin hydration overnight and all-night comfort.

      Read more about collagen and eucalyptus

    • Clinically tested and verified

      NATTCOLLAGEN™ received the 5-star seal from Dermatest®, an independent dermatology testing institute in Münster, Germany.

      This seal is only given for tests where excellent skin compatibility can be guaranteed and standards of clinical testing are met.

      More about the testing