Our Zipadee-Zip is a must-have for every nursery. Made from the highest quality 100% polyester to keep your baby comfortable, our lightweight Zipadee-Zip sleep swaddle blanket lets your baby stay perfectly cool while sleeping. Our Zipadee-Zip acts as a swaddle transition for babies aged three months and older. Thanks to its unique starfish design, the Zipadee-Zip provides the comforting, enclosed feeling of a swaddle but without limiting your baby?s full range of motion. Your baby can push up, roll over, wiggle safely, and still soothe him or herself back to sleep! Plus, the Zipadee-Zip sleep pod helps your baby sleep safer - no more loose blankets in the crib! Available in five sizes, and suitable for babies aged three months to two years, our Zipadee-Zip is intended for sleeping only. Please don?t use for running or walking.The Science Behind The Zipadee ZipThe star-shaped pointed sleeves and star-fish design inspires sounder sleep than any other wearable blankets on the market. The slight resistance in the wing-span allows your baby to move around freely while still providing the enclosed, cozy sensation babies enjoy so much in swaddles and in the womb.Have you ever wondered why your baby suddenly wakes up with a start? This happens because they wake up and cannot feel their edges like they could in the womb, which triggers the "Moro" (or startle) reflex. The Zipadee-Zip provides those "edges", or womb-like environment, while also giving them freedom to roll and use their arms and hands safely. This is why the Zipadee-Zip will work when all other products parents have tried to transition their babies typically fail.We pride ourselves on giving you the best experience possible. Don't hesitate to reach out to our customer support team if you have any questions!