What makes the Cool+ Sheet Set different from regular sheets?

The Cool+ Sheet Set uses a proprietary cooling nylon-spandex blend that actively transfers heat away from your body, offering a cool-to-the-touch, silky-soft sleep experience. It's scientifically validated with a high Qmax cooling score of 0.45 out of 0.50.

Who should choose the Cool+ Sheet Set?

This set is recommended for the hottest sleepers and anyone seeking ultra-smooth, cool bedding—especially those frustrated by overheating or looking for a restorative, comfortable night's rest.

What's included in the Twin XL set?

The set contains one fitted sheet, one flat sheet, and two pillowcases.

How do I care for these sheets?

Machine wash cold separately, do not bleach, and tumble dry low. Washing before first use is recommended.

Are the Cool+ sheets certified for safety?

Yes, they're OEKO-TEX® Standard 100 certified, meaning they're tested and verified to be free from harmful substances.

What are the dimensions for Twin XL sheets?

For Twin XL: the flat sheet is 68" x 100", the fitted sheet is 39" x 80" with a 16" pocket depth, and the pillowcases are 20" x 30".

What is the return policy for the Cool+ Sheet Set?

The Cool+ Sheet Set – Twin XL is a final sale item and is not eligible for returns.

How is the cooling measured scientifically?

The Qmax score is a scientific measurement used to quantify the cooling sensation of a fabric. The Cool+ Sheet Set scores 0.45 out of 0.50, indicating superior cooling performance.

What are the best cooling sheets in Twin XL size?

The Cool+ Sheet Set – Twin XL offers measurable, best-in-class cooling, with a scientifically measured Qmax cooling score of 0.45 out of 0.50 for truly comfortable, uninterrupted rest.

Cooling Sheet Set Twin XL | Sale

$179.00

Twin XL Sheet Color: Grey Blue

Size Guide

Final sale items not eligible for returns

Shockingly cool fabric

Engineered with a cooling nylon-spandex blend, this fabric actively transfers excess heat away from your body while providing an exceptionally silky-soft feel against your skin.

Coolness backed by science

Scoring a Qmax score of .45 out of .50, a Qmax score is a scientific measurement used to quantify the cooling sensation of a fabric.

Low-maintenance luxury

Quick-drying and wrinkle-free, with a consistently silky-smooth finish wash after wash.

Size Guide

Flat Sheet Size	Dimensions
Twin	68" x 100"
Twin XL	68" x 100"
Full	90" x 100"
Queen	90" x 100"
King	106" x 100
Cal King	106" x 100"

Fitted Sheet Size	Dimensions	Pocket Depth
Twin	39" x 76"	16"
Twin XL	39" x 80"	16"
Full	54" x 75"	16"
Queen	60" x 80"	16"
King	76" x 80"	16"
Cal King	72" x 84"	16"

Pillowcase Size	Dimensions
Standard/Queen	20" x 30"
King	20" x 36"

Comphy SoftSpa™

Recommended for anyone that wants a cozy, and luxuriously soft yet durable sheets created for 5-star spas and resorts. 

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Cotton Percale

Recommended for hot sleepers that want lightweight, breathable sheets with a crisp finish that softens over time

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TENCEL™

Recommended for eco-conscious hot sleepers and those who want a weightless, silky but not slippery feel. 

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Cool+

Recommended for the hottest sleepers who want an ultra-smooth sheet that’s cool to the touch. 

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Linen-Cotton

Recommended for anyone seeking linen’s effortless elegance paired with cotton’s softness, breathability, and optimal temperature control. 

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86% of users sleep better with Coop • 86% of users sleep better with Coop • 86% of users sleep better with Coop •

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Cool+ Sheet Set - Twin XL

Find your perfect sheet

From buttery-soft to crisp and cool, we designed our sheets with every type of sleeper in mind.

Comphy SoftSpa™

Cotton Percale

TENCEL™

Cool+

Linen-Cotton