Designed to create a womb-like environment to help soothe and comfort newborn babies. Easily swaddle to promote healthy, restful sleep. When baby begins to roll over, zip off the shoulder panel to create armholes. Features: Soft and cozy fabric to help soothe baby’s restful sleep; Snug fit provides comforting cocoon-like embrace; Inverted front zipper for easy diaper-changing and dressing; Chin protector to prevent rubbing and irritation; Zip off panels to stretch arms when it’s time to stop swaddling; Machine wash, tumble dry low (close the zipper before wash) Fabric: 100% rayon from bamboo TOG meaning: TOG is a unit of measure of thermal insulation used in the textile trade. The British "TOG" value is the international standard measurement of a blanket's thermal effectiveness (how well it keeps you warm). 0.5 TOG Comfort for warmer seasons or climates 1 TOG Three season comfort (moderate weather)