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Women's Ultrafine Merino Sleep Bottoms

4.9
Rated 4.9 out of 5 stars
224 Reviews
€125,95
€125,95
100% Merino Wool. 165gsm.
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Model Info +

Model is 5'10", has a 23.5" waist and is wearing size S

Women's Ultrafine Merino Sleep Bottoms

4.9
Rated 4.9 out of 5 stars
224 Reviews
€125,95
€125,95
100% Merino Wool. 165gsm.

Experience better sleep with the comfort of Merino wool. These ultra-soft, temperature-regulating pajama bottoms are designed to enhance your rest, keeping you cool when needed and cozy throughout the night. Pair with our Ultrafine Sleep Top for the ultimate sleep setup.

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Color Heather Oat Only 10 left!
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Only 4 payments of €31,49 with

Experience better sleep with the comfort of Merino wool. These ultra-soft, temperature-regulating pajama bottoms are designed to enhance your rest, keeping you cool when needed and cozy throughout the night. Pair with our Ultrafine Sleep Top for the ultimate sleep setup.

Learn More
Why our customers
love us
Our founder
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  • Odor resistant Odor resistant
  • Temperature regulating Temperature regulating
  • Wicks moisture Wicks moisture
  • Perfect for packing Perfect for packing
Fabric and Details
  • Fiber micron: Ultrafine 15.5
15 µm
15.5 µm
25 µm
Care instructions
  • Machine wash in cold gentle cycle
  • Wash with like colors inside out
  • Do not bleach 
  • Do not tumble dry 
  • Iron in low temperature 
  • Lay flat to dry in shade
Merino Care 101
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Sleep Better In Merino Wool.

  • Temperature-regulating properties mean you’re never too hot or cold.
  • Super-soft feel against your skin.
  • Won’t smell after weeks of wear, unlike cotton or synthetics.
  • Dries really fast, keeping you comfortable.
  • Folds up compactly, saving you essential packing space.
Sleep Better In Merino Wool.
Nature's Miracle Fabric

Nature's Miracle Fabric

Merino wool fibers allow it to wick moisture away from your skin, which ensures comfort and moisture management. Merino wool’s complex structure locks odor molecules within the fiber and only releases them on washing.

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 shirt that’s lighter and much softer than the average Merino or cotton shirt. It’ll also maintain its form over time and not get ruined after a wash, like most clothes these days.

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.

Shop this fabric

“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

  • RWS (Responsible Wool Standard) certified, adheres to the welfare of the sheep and their land.
R.W.S

What people are saying

4.9
Rated 4.9 out of 5 stars
Based on 224 reviews
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How did you find the fit?Rated 0.3 on a scale of minus 2 to 2
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224 reviews
  • LP
    Laura P.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    10/14/26
    Women’s Ultrafine Merino Sleep Bottoms

    Alright ya’ll I came back for my 2nd pair of these!! I can do Small but got these in Med bc I’m 65 yrs old, and like stuff loose around the middle especially for sleeping. Honestly I just throw them in the wash and the length shrinks up from when they are brand new but I’m 5’3” so it perfect!! And along with the tops that match it’s all I want to sleep in anymore!!!

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • R
    Rosmara
    I recommend this product
    Rated 5 out of 5 stars
    10/13/26
    5 Stars

    Soft and comfortable

    Was this helpful?
  • MT
    Michele T.
    Verified Buyer
    I recommend this product
    What size did you buy? XL
    Rated 5 out of 5 stars
    10/11/26
    Exactly what I was looking for

    These sleep bottoms are perfect. The drape is beautiful. They are light weight and excellent for sleeping in. They are well made. The drawstring is on the inside of the pants. This is the first time I have ever seen that and it makes so much sense. - what a great design. I wish other pants would do this. My husband complemented me in the pants and said how nice they look on. I am so happy with these that I plan on purchasing another pair.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • KH
    KIm H.
    Verified Buyer
    I recommend this product
    What size did you buy? S
    Rated 5 out of 5 stars
    10/7/26
    My favorite pajama pants!

    These pants are the perfect pajama pants! super soft, somehow warm, and also cool, and super packable!

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  • MS
    Melissa S.
    Verified Buyer
    I recommend this product
    What size did you buy? XS, S
    Rated 5 out of 5 stars
    10/6/26
    Possibly my favorite UM piece!

    I have quite a few pieces from Unbound Merino, but I think these sleep pants are one of my favs. They are soft and comfy. Generous in size, so I ending up sizing down. I have the top too and the shorts. Best ever!

    How did you find the fit?Rated 1.0 on a scale of minus 2 to 2
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