Sunday Citizen: The World’s Softest Luxury Bedding and Loungewear

Bamboo Viscose Cooling Fitted Sheet

Bamboo Viscose Cooling Fitted Sheet - Main image
$96 $180 In stock

Category: Premium Bamboo Viscose

Performance meets refinement. The Cooling Bamboo Viscose Fitted Sheet transforms the everyday fitted sheet with Outlast® technology, a patented phase-change system originally developed for NASA that absorbs excess body heat and releases it when your temperature drops. Designed for continuous, balanced comfort throughout the night, it fits smoothly over your mattress and stays put, so the only thing you'll feel is how good sleep can be.

  • Outlast® technology actively regulates body temperature

  • Smooth, soft hand feel

  • Fits securely for all-night comfort

  • Machine washable

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Benjamin ★★★★★

I typically wake up drenched in summer, but this sheet kept me cool through the whole night—the phase-change fabric actually absorbs that body heat. The bamboo viscose feels silky against my skin, and it stays tucked on the mattress corners even after tossing around.

Evelyn ★★★★★

The Outlast tech really delivers—I've gone from kicking the covers off at 3am to sleeping through the night without flipping the sheet over. The bamboo viscose feels silky but not slippery, and it stays put on the mattress corners even after a restless night.

Grace ★★★★★

I wake up less sweaty now, which is honestly the biggest compliment I can give a sheet. The Outlast tech sounds gimmicky but it really does keep the bed cool through the night, and the bamboo viscose feels silky without that slippery plastic feeling.