Features & Benefits of Slumber Sacks

Premium Natural Fabrics – Made with Australian superfine merino wool lining (260gsm) and organic cotton outer, this baby sleep sack with sleeves provides extra warmth for cooler nights while staying gentle on delicate skin.

Ideal for Cooler Rooms (60–70°F) – Designed for comfortable sleep in cooler temperatures, the slightly heavier merino wool lining and sleeves provide added warmth without overheating.

Natural Temperature Regulation – Merino wool naturally regulates body temperature, keeping your baby warm when it’s cool and comfortable when temperatures rise, for balanced sleep throughout the night.

Breathable & Moisture-Wicking – This merino wool sleep sack helps prevent overheating by allowing airflow and wicking moisture away from the skin, keeping your baby dry and cozy.

Sleeves for Extra Warmth – Built-in sleeves provide additional coverage for cooler environments, and allow freedom of movement during sleep.

Easy Diaper Changes – A convenient two-way zipper makes dressing and nighttime diaper changes quick and easy. Zipper guards protect your baby’s skin and help discourage your baby from chewing on the zipper pull.

Certified Safe & Non-Toxic – OEKO-TEX® STANDARD 100 certified (23.HUS.59156, Hohenstein HTTI), tested against harmful substances for your baby’s safety.

Responsibly Sourced Materials – Made with Woolmark® and RWS-certified merino wool (cruelty-free, mulesing-free) and GOTS-certified organic cotton.

A safer alternative to loose blankets
Helps your baby stay covered through the night, replaces loose blankets in the crib, and promotes back sleeping.