Are you trying to ditch the swaddle? This sleep sack saved our sleep. This cozy swaddle transition provides a secure, enclosed feel that helps calm the startle reflex while still allowing plenty of movement for healthy hip development. The unique star-shaped design offers a gentle sense of security, promoting deeper, more restful sleep. This is a super cute Rocket Ship pattern! It is in very good condition, only used for a few weeks. Size small 4-8 month, 12-19 lbs.