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Women's Merino Sleep Tank

4.8
Rated 4.8 out of 5 stars
29 Reviews
$55
$68 $55
Save $13
Sierra Red
Sierra Red
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Sierra Red
Sierra Red
Sierra Red
Sierra Red
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Model Info +

Model is 5' 10", has a 34C bust and is wearing size S

Women's Merino Sleep Tank

4.8
Rated 4.8 out of 5 stars
29 Reviews
$55
$68 $55
Save $13

Settle into a satisfying sleep in the airy comfort of Merino wool. This super-soft, temperature-regulating V-neck top keeps you cool and comfortable when it matters most. Pair with our Sleep Short for the ultimate sleep setup.

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Color Sierra Red All items marked Final Sale at the time of purchase are not eligible for return, refund, or exchange. Only 10 left!
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Settle into a satisfying sleep in the airy comfort of Merino wool. This super-soft, temperature-regulating V-neck top keeps you cool and comfortable when it matters most. Pair with our Sleep Short for the ultimate sleep setup.

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  • Odor resistant Odor resistant
  • Wicks moisture Wicks moisture
  • Light and breathable Light and breathable
  • Perfect for packing Perfect for packing
Fabric and Details
  • 63.5% Merino Wool, 27.5% Tencel, 9% Nylon
  • 200gsm
  • Soft touch
  • Fiber micron: Superfine 17.5
15 µm
17.5 µm
25 µm
Care instructions
  • Machine wash in warm gentle cycle
  • Wash with like colors
  • Do not bleach
  • Do not tumble dry
  • Lay flat to dry in shade
  • Iron on low temperature
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 (17.5 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 shirt much at all. However, when it comes time for a refresh, simply add it to your load at the normal or cool 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

  • Woolmark® certified Merino wool means you can expect the highest standards related to fiber content, performance, color fastness, and dimensional stability.
  • 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.
  • RWS (Responsible Wool Standard) certified, adheres to the welfare of the sheep and their land.
Woolmark
OEKO-TEX
Bluesign
GOTS
R.W.S

What people are saying

4.8
Rated 4.8 out of 5 stars
Based on 29 reviews
Slide 1 selected
Total 5 star reviews: 25 Total 4 star reviews: 3 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
How did you find the fit?Rated 0.3 on a scale of minus 2 to 2
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29 reviews
  • BB
    Brenna B.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    6/17/26
    Ideal sleep top.

    I got this with the shorts as a set, and it’s perfect. The top is loose, but cut so that it doesn’t gape, even after a night sleeping in it. Slept in it 7 nights on a short trip and no smell!

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • RB
    Rose B.
    Verified Buyer
    I recommend this product
    What size did you buy? XL
    Rated 5 out of 5 stars
    6/17/26
    Nice and soft

    It feels good. A little big for me though. All of UM’s apparel that I’ve tried so far seem to be bigger than an XL which is what I wear. Your mileage might vary though.

    How did you find the fit?Rated 2.0 on a scale of minus 2 to 2
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  • ND
    Nancy D.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    6/4/26
    Merino PJs

    These pjs are super comfortable and so light, they pack down to almost nothing. Perfect travel and warm weather pjs!

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • CT
    Christine T.
    Verified Buyer
    I recommend this product
    What size did you buy? M
    Rated 4 out of 5 stars
    5/31/26
    Very comfy

    The material of this top is SO soft and comfy. Great for sleeping. The cut of the top is not too is a little awkward. I think the straps could have been longer. The length is rather cropped, which works for me as someone who is short.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • CC
    Christine C.
    Verified Buyer
    What size did you buy? S
    Rated 3 out of 5 stars
    5/28/26
    Nylon content

    I purchased too hastily and missed the nylon content. I own many unbound merino pieces and I was bamboozled by the heavy “100 percent merino wool” marketing. And I thought I was a savvy shopper. I feel disappointed. I come here for the natural fibres.

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