CPSC Safety Certified • Moisture-Wicking Bamboo • 2-Way Diaper Zipper
Cloud-Soft, Breathable Comfort for Peaceful Nights











U.S. Shipping: Orders are processed in 2–3 business days and normally arrive 3–8 business days after dispatch. Free standard shipping on orders over $39.99; shipping for smaller orders is calculated at checkout.
30-Day Returns: Unworn, unwashed items in original packaging may be returned within 30 days of delivery. Return shipping for non-quality-related returns is paid by the customer. Final Sale and Clearance items are not returnable.
Certified Safe Materials: Crafted from OEKO-TEX certified organic bamboo viscose & cotton. Hypoallergenic, breathable, and completely free from harsh chemicals or harsh dyes—safe for eczema-prone baby skin.
Machine Washable: Designed for busy parents! Machine wash cold on a gentle cycle with like colors. (Pro-tip: Zip up all zippers before washing to prevent snagging).
Dryer Friendly: Tumble dry on low heat or air dry. Our pre-washed fabrics get even softer with every wash without shrinking or losing shape.
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Cloud-Soft, Breathable Comfort for Peaceful Nights
Material: 95% Bamboo Rayon, 5% Spandex
TOG Rating: 1.0 TOG (Ideal for year-round comfort)
Care: Machine wash cold, tumble dry low heat.
Why Choice YOOFOSS Sleep Sack
Designed for safer sleep and effortless midnight changes.
Designed with a soft fabric cover at the top to protect your baby’s delicate chin and neck from scratches.
Naturally thermoregulating, breathable, and buttery-soft. Gentle on sensitive skin and keeps baby cool and cozy all night.
Unzips effortlessly from the bottom for quick midnight diaper changes without waking or unbundling your baby.
We offer FREE standard shipping on all U.S. orders over $39.99.
Please refer to our Size & TOG Guide linked on every product page. TOG ratings depend on your nursery room temperature: 0.5 TOG for warm rooms ($24^\circ\text{C}+$ / $75^\circ\text{F}+$), 1.0 TOG for year-round comfort ($21\text{–}23^\circ\text{C}$ / $69\text{–}73^\circ\text{F}$), and 2.5 TOG for cooler nights. If your baby is between sizes, we recommend sizing up for room to grow.
Machine wash cold on a gentle cycle with like colors. Zip up the sleep sack before washing to prevent snagging. Tumble dry on low heat or line dry. Do not bleach or iron to preserve the buttery softness of the bamboo fabric.