This wearable blanket replaces loose blankets in the crib for a safer environment with three directions of swaddling to ensure your baby gets the best sleep and it is easy to transition when you stop using swaddling. Our swaddle wings are made of soft linkable cotton fabric instead of the sharp velcro design of other products making them safer and more comfortable. Large swaddle fasteners provide adjustability for a perfect fit and three adjustable swaddles allow for arm in to reduce startle reflex single arm out for self soothing and double arm out for an easy transition from swaddle to sleeping bag. The reverse zipper opens from the bottom for easy diaper changes without the need to unswaddle and the sleeveless design reduces the risk of overheating with arm and neck openings sized for more security. These baby sleep sacks can help your baby get a longer more restful night sleep.