The SwaddleDesigns Omni Swaddle Sack is designed to provide better sleep for newborns with its 6-way adjustable wrap, arms up sleeves, and mitten cuffs. This versatile swaddle sack is ideal for snug swaddling a newborn, allowing for various arm positions as the baby grows. The sleeves with mitten cuffs can be worn open or closed, enabling the baby to self-soothe or be protected from facial scratches. The ergonomic design supports natural hand and arm positions, and the narrow wrap does not interfere with the baby's hips. The 2-way double-pull zipper allows easy diaper changes without fully waking the baby. Made from 100% cotton, the fabric is soft, stretchy, and breathable. The swaddle sack is recognized by the International Hip Dysplasia Institute as hip healthy and is trusted by major US hospitals to promote safe sleep.