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Yomisma · Powered by TriVara™

Sleep Shirt

Name: Sleep Shirt
Brand: YOMISMA SLEEP
Price: 168.0 USD
Availability: InStock

Thermoregulating

Skin-hydrating

Recovery

$168.00

Sale Sold out

Founding Member price

Color: Champagne

Size: XS/S

XS/S
M/L
XL/XXL

Shipping Update

Free Shipping Orders $100+ Will be shipped by November 16.

“I do not run big. I’m made of natural fibers and will shrink a bit upon first wash.”

Please wash on delicate or gentle cycle, cold water, and dry on low heat or lay flat to dry. See how it fits

In stock

Founding Members get first access to the limited first run.

Beautifully Presented. Ready to Gift.

Every YOMISMA piece arrives in our signature gift box, thoughtfully designed to make giving (or receiving) something special.

Helps regulate temperature through night sweats and hot flashes
Collagen-based fibers support skin hydration while you sleep
Infrared technology supports circulation and recovery
A hidden affirmation sewn inside every garment

Founder’s Gift : Spend $200 or more and choose an Eye Mask in your favorite colorway, free for our first 100 orders, then just $25 for the next 50. Thank you!

Cooling
Hydrating
Infrared
Antimicrobial
Biodegradable

Description

Crafted in collaboration with textile scientists, the Yomisma Sleep Shirt combines skin-supportive, moisture-binding fibers with proprietary thermoregulating and recovery technologies. Beautiful enough to actually want to wear.

Fabric & care

TriVara™ tri-fiber blend. Performance attributes are woven in at the fiber level, so they last for the life of the garment. Discover the science.

I’m made of natural fibers and will shrink a bit upon first wash. Please wash on a delicate or gentle cycle with cold water, and dry on low heat or lay flat to dry.

Size & fit

Relaxed fit with room to move.
Model #1 is 5'8 1/2, Dress size 2-4, Bust 32", Waist 25½", Hips 36".
Model #2 5'10 1/2, Dress size 14, Bust 36'', Waist 33'', Hips 44½'
This garment is made of natural fibers and will shrink a bit upon first wash (3-5%), so choose your usual size. See the fit sequence.

Will it shrink?

A little. I do not run big. I’m made of natural fibers and will shrink a bit upon first wash, by around 3–5%. After that, the fit stays the same wash after wash.

Please wash on a delicate or gentle cycle with cold water, and dry on low heat or lay flat to dry. See how it fits.

Free Returns & Exchanges

We gladly offer free returns and exchanges within 30 days of delivery, extended through January 4, 2027 for holiday purchases. Items must be unworn, unwashed, and in their original condition with tags attached. Because our Founder's Collection is produced in limited quantities, exchanges are subject to availability. If your preferred size is unavailable, we'll help you arrange an eligible return instead. Refunds are issued to the original payment method.

A little roomy
01. First Fit
Straight out of the box it drapes slightly loose, with extra length in the body and sleeves.
Settles ~3–5%
02. First Wash
Wash cold on a delicate or gentle cycle, then dry on low heat or lay flat. The natural fibers shrink a bit, just as they’re meant to.
Your fit
03. Intended Fit
Now it sits exactly as designed: relaxed, true to size, and it stays that way wash after wash.

Between sizes? Choose your usual size. The first wash takes care of the rest.

What’s woven inside?

Thermoregulating fibers

Adaptive fibers help cool when you’re warm and warm when you’re cool.

Antimicrobial

Naturally resistant to odor and bacteria, without harsh chemicals.

Collagen-based fibers

Moisture-binding fibers support skin hydration and suppleness overnight.

Biodegradable materials

Plant-based sources designed to break down cleanly at end of life.

Infrared support

Supports circulation, cellular recovery and inflammation response.

A hidden affirmation

Sewn inside every garment: a quiet reminder of your strength and worth.

In our four-week REST Study™, women documented their sleep experiences through morning diaries while alternating between weeks assigned to YOMISMA and their usual sleepwear.

Real Women. Real Nights. Measurable Differences.

80%
Experienced better self-reported sleep quality.
76%
Felt more refreshed upon waking.
75%
Reported less nighttime overheating.
71%
Reported less sweating or clamminess.

These findings reflect the percentage of participants whose average morning diary scores were more favorable during YOMISMA-assigned weeks compared with usual-sleepwear-assigned weeks. Results are based on self-reported experiences in a four-week, nonrandomized study. Individual experiences may vary.

Explore the REST Study™

Science-Backed

Developed with textile scientists for midlife changes.
Women-Led

Built around how menopause affects your body, sleep and skin.
Ethically Sourced

Grounded in fairness, transparency and circular design.

Loved by our Founding Members

The Sleep Shirt

Smart textiles. Better sleep. Made for menopause. A relaxed satin shirt that works through the night, so you can wake feeling like yourself again.

Fabric

TriVara™ tri-fiber satin

Designed for

Perimenopause and menopause

Benefits

Cooling, hydrating, restorative

Fit

Relaxed, true to size

Colours

Champagne, Windsor Wine, Custom Print

Care

Delicate or gentle cycle, cold water; dry on low heat or lay flat

A Sleep System Built for What You’re Actually Going Through

From sleepwear and bedding to accessories, sound wellness, expert content, and curated experiences — everything designed specifically for women in perimenopause and menopause. All in one place

Follow @yomismasleep

Science-Backed Textiles
Engineered for night sweats, disrupted sleep and skin changes.
Designed for Women’s Rhythms
Built around how menopause affects your body, sleep and skin.
Ethically Sourced
Responsibly sourced, grounded in fairness and transparency.

Sleep Shirt

Made to Settle Into You

01. First Fit

02. First Wash

03. Intended Fit

Powered by TriVara™