100% Cotton Imported SAFE AND SECURE SLEEP SOLUTION: The Original Halo Sleepsack Swaddle replaces loose blankets in the crib, creating a safer sleep environment. Endorsed by hospitals nationwide to promote safe and restful sleep for your baby. SOFT AND STRETCHY COTTON: Made from 100% cotton with a double-knit construction, offering a cozy and slightly stretchy feel perfect for swaddling. TOG Rating 1.5 (room temperature of 68°-72°F): Suitable for cooler evenings during spring or fall. 3-WAY ADJUSTABLE SWADDLE DESIGN: Generously sized fasteners allow a perfect, customizable fit. Adjust the swaddle for Arms-In to reduce startle reflex, One-Arm-Out hand to face for self-soothing, or Two-Arms-Out to transition to the Halo SleepSack, an easy transition when it’s time to stop swaddling. CONVENIENT DIAPER DESIGN An inverted zipper opens from the bottom, allowing easy diaper changes without disturbing your baby’s swaddle. Sleeveless design minimizes overheating risk, while snug arm and neck openings ensure a secure fit. SIZE SMALL – IDEAL FOR INFANTS (13-18 lbs): Specially sized for babies 3-6 months old, weighing 13-18 pounds, and measuring 23-26 inches. Discontinue use when baby begins rolling over or attempting to escape from the swaddle.