NWOT - Never worn or used Washed once on delicate using Dreft Newborn detergent and air dried Size small - 3-6 months / 12-18 lbs The Magic Sleepsuit is a patented swaddle transition product created by a pediatric physical therapist and mother of four. It is designed to help your little one when they are breaking out of the swaddle, but still want the safe and comfortable feeling that the swaddle provides. The Magic Sleepsuit provides that cozy feeling while allowing your baby the freedom of movement they need as they develop.