2-in-1 adjustable swaddle that allows for swaddling arms in or arms out for baby"s comfort; 100% cotton interlock; Size newborn fits 6-12 pounds, size small fits 13-18 pounds * Use over regular sleepwear to take the place of loose blankets; Discontinue swaddling when baby shows signs of rolling over; Unzips from the bottom allowing baby to stay swaddled for easy diaper changes * Sleeveless design reduces the risk of overheating; Generous sack design allows room for kicking, but can"t be kicked off so baby stays warm all night * Used by over 1,000 hospitals nationwide as their product of choice for teaching parents safe sleep practices; Recognized as "Hip Healthy" by the International Hip Dysplasia Institute * Embroidery reminds caregivers to place baby on his or her back