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Women's Ultrafine Merino Sleep Bottoms

4.9
Rated 4.9 out of 5 stars
105 Reviews
$118
$118
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Model is 5'11", has a 24" waist and is wearing size S

Women's Ultrafine Merino Sleep Bottoms

4.9
Rated 4.9 out of 5 stars
105 Reviews
$118
$118

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 Black Only 1 left!
Size
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Inseam

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

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
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Why our customers
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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
  • 100% Merino Wool
  • 165gsm
  • 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.

Easy care

Easy care

You won’t have to wash this pair of pants much at all. However, when it comes time for a refresh, simply add it to your load at the cold temperature setting and then lay flat to dry.

“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 105 reviews
Slide 1 selected
Total 5 star reviews: 95 Total 4 star reviews: 8 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 1
How did you find the fit?Rated 0.4 on a scale of minus 2 to 2
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105 reviews
  • SL
    Sandra L.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    3/6/26
    Comfortable pants

    Great quality and very comfortable. They are good for sleeping, and great for travelling too. The material is soft, dries quickly.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • PH
    Pauline H.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    3/5/26
    Nice!

    I have another wool brand of sleep bottoms but they’re really long. I was glad to see these appear short on the model. However, I will have to hem these. I am keeping them because they are a nicer quality than make for good hotel room lounging or quick errand pants. A great travel option. Medium is roomy, so if ordering again I would go with small.

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  • J
    JM
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    3/4/26
    Love these pants

    Despite them being sleep bottoms, I wear them throughout the day. Super comfy, really nice fit, wide legs right on trend.

    How did you find the fit?Rated 2.0 on a scale of minus 2 to 2
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  • ML
    Marie L.
    Verified Buyer
    I recommend this product
    What size did you buy? XL, L
    Rated 5 out of 5 stars
    2/28/26
    The lightest, most comfy lounge pants ever !

    I bought a pair of black XL lounge pants that I used as pyjama bottoms on a one-month trip in December/January and they still looked and smelled fresh at the end of my stay! Loved them so much that I ordered a pair of navy L lounge pants that I can wear as regular pants. Cannot recommend those enough! Wish they came as knee length- or mid-calf length-pants for the summer!:)

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  • LD
    Lisa D.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    2/27/26
    beautiful pants even for us tall gals

    I too was afraid the pants would be too short based on description and reviews but I took a chance and they are perfect. I'm 5'11", 165-170 lbs with a 33-34 inseam and pear shaped. The medium fits perfectly. They are dreamy! Perfect for lounging and sleeping and maybe even some yoga. Highly recommend.

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