Home Women's Latest Arrivals

Women's Ultrafine Merino Sleep Longsleeve

4.9
Rated 4.9 out of 5 stars
11 Reviews
€86,95
€86,95
100% Merino Wool, Jersey. 165 gsm.
Black
Black
diagram
Black
Black
Black
Pinch or double tap to zoom
Customer Photos

Women's Ultrafine Merino Sleep Longsleeve

4.9
Rated 4.9 out of 5 stars
11 Reviews
€86,95
€86,95
100% Merino Wool, Jersey. 165 gsm.

Wind down in the ultra-lightweight comfort of Merino wool. This super-soft, naturally thermoregulating sleep longsleeve is designed to enhance your rest, keeping you cool when needed and cozy throughout the night. Pair with our Ultrafine Merino Sleep Bottoms or Shorts for the ultimate sleep setup. 

Learn More
Color Black Only 4 left!
Size
Size guide
Only 4 payments of €21,74 with

Wind down in the ultra-lightweight comfort of Merino wool. This super-soft, naturally thermoregulating sleep longsleeve is designed to enhance your rest, keeping you cool when needed and cozy throughout the night. Pair with our Ultrafine Merino Sleep Bottoms or Shorts for the ultimate sleep setup. 

Learn More
Why our customers
love us
Our founder
reveals all
Fabric and Details
  • 100% Merino Wool, Jersey
  • 165 gsm
  • Soft touch
  • Fiber micron: Ultrafine 15.5
15 µm
15.5 µm
25 µm
Care instructions
  • Wash on cool temperature setting
  • Wash with like colors
  • Lay flat to dry in shade
  • Do not bleach
  • Do not tumble dry
  • Iron on low temperature
Merino Care 101
Women's Ultrafine Merino Sleep Bottoms

Pairs well with

Women's Ultrafine Merino Sleep Bottoms

€121,95
View product
Add to cart

Sleep Better in Merino Wool. 

  • Temperature-regulating properties mean you’re never too hot or cold.
  • Super-soft feel against your skin. 
  • Antibacterial, unlike cotton and synthetics.
  • Moisture-wicking, keeping you comfortable.
  • Folds up compactly, saving you essential packing space.
Sleep Better in Merino Wool. 
Nature’s miracle fabric

Nature’s miracle fabric

Every Merino wool fiber has a waxy coating called Lanolin, which helps wick moisture away from your body, and act as a safeguard against odor-causing bacteria. This is what allows our Merino to stay breathable and dry while smelling and feeling fresh, no matter what you put it through.

Softer than cotton

Softer than cotton

This wool isn’t like your typical itchy sweater. We only use superfine (15.5 micron) Merino wool, resulting in a luxuriously silky soft feel that’s lighter and more plush than your average Merino or cotton. And unlike most clothes, it'll also maintain its form over time and won’t get ruined after a wash.

Ultrafine Sleep Jersey

Ultrafine Sleep Jersey

Made from 15.5 micron ultrafine Merino wool, this sleep jersey is cloud-soft and temperature regulating—ideal for uninterrupted rest. Lightweight and breathable at 165gsm, it keeps you cool or warm as needed. Perfect for home or travel, it’s comfort you’ll look forward to every night.

“The perfect T-shirt can see you through almost any situation, and Unbound makes a strong bid for the title with their chic Merino designs.”

"It's the most popular T-shirt in our Merino guide and well-loved by travelers. It's very soft and lightweight, and it packs down to a tiny roll."

“These tees have a sophisticated European elegance to them, thanks to both the material and design. Just looking at them makes you feel chic.”

“Between the flattering fit and the classic style, it's a great option for travel.”

"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."

Travel Leisure
WIRED
Forbes
Lonely Planet
Fast Company

"This is the perfect base layer as it’s super lightweight and is anti-wrinkle and moisture-wicking. This can quickly become your new closet staple at home and on the road."

"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."

"Lightweight and breathable, this shirt has a perfectly soft feel. The thin material is moisture-wicking, making this great for layering or wearing on its own."

"Unbound Merino sits at the intersection of travel gear and luxe knitwear, offering wool garments in timeless styles. They use superfine premium Merino wool that’s Woolmark-certified."

"This shirt's wool fibers lock odor molecules within and only release them on washing — which means less washing and more wearing. That makes this the ultimate travel top."

Travel + Leisure
Fast Company
Conde Nast Traveller
Bustle
Refinery29

About our wool

  • Made in Green OEKO-TEX® certified which guarantees this item was manufactured in environmentally friendly, socially responsible facilities.
  • Bluesign certified for supply chain traceability, a service that helps companies to become more sustainable.
  • GOTS (Global Organic Textile Standard) certified, ensuring organic integrity and responsible manufacturing at every step.
OEKO-TEX
Bluesign
GOTS

What people are saying

4.9
Rated 4.9 out of 5 stars
Based on 11 reviews
Slide 1 selected
Total 5 star reviews: 10
Total 4 star reviews: 1
Total 3 star reviews: 0
Total 2 star reviews: 0
Total 1 star reviews: 0
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
Write a Review (Opens in a new window)
11 reviews
  • PH
    Pei-Lan H.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    8/8/26
    Soooooo soft!

    I have extremely sensitive skin and so have experienced a lot of trouble finding long sleeve shirts I can wear. So far my favorite is the Unbound Merino Poplin long sleeve shirts, but sometimes those are just too formal. Since these shirts are currently made with 15.5um wool I decided to try them out and hey, my arms can tolerate the Sleep shirt much better than the Long Sleeve Crew! Again I have extremely sensitive skin so if you already wear the Long Sleeve Crew just fine then you'll LOVE these! I now wear these during the day such as early morning Tai Chi practice. Merino is my favorite when it comes to temperature regulation! For sizing I'm 5'4 120lb and love the Medium size.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • AG
    Amy G.
    Verified Buyer
    I recommend this product
    What size did you buy? XS
    Rated 5 out of 5 stars
    8/8/26
    Comfy and Cute!

    The shirt is lightweight, soft, and comfortable. The length is on the short side. I wear small or xs, and the xs fits great.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • JD
    Julie D.
    Verified Buyer
    I recommend this product
    What size did you buy? L
    Rated 5 out of 5 stars
    8/3/26
    Great sleep top!

    Perfect weight, not to hot nor too cold. Not tight or binding. Washes and dries wonderfully!

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • FJ
    Freda J.
    Verified Buyer
    I recommend this product
    What size did you buy? L
    Rated 5 out of 5 stars
    7/27/26
    Perfect sleep wear

    I love the Unbound sleepwear. So soft and comfortable and not too hot for those of us who run hot at night.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
    Was this helpful?
  • A
    Anthony
    I recommend this product
    Rated 5 out of 5 stars
    7/27/26
    5 Stars

    So soft, love it xs fits for reference 5’0”-103 lbs

    Was this helpful?
Show More