The 6-way Organic Omni Swaddle Sack® with Adjustable Wrap and Arms Up ½-length sleeves with Mitten Cuffs is a great choice for snug swaddling a newborn, for a baby who likes to suck on hands, for a baby starting to roll over, and every stage during baby's first 3 months. When baby sleeps better, everyone gets more sleep. The versatile, ergonomic and convertible design supports more natural hand and arm positions which provides parents with more options to adjust how they swaddle as baby grows. The Omni Swaddle Sack's patented design with sleeves is superior to other swaddles with no sleeves. Parents can open the cuffs, so baby can self-soothe by sucking on hands or close the cuffs to protect baby from facial scratches. The adjustable wrap is narrow and does not interfere with baby's hips and the soft hook-and-loop fasteners make it easy to swaddle baby. The International Hip Dysplasia Institute (IHDI) has deemed the SwaddleDesigns Omni Swaddle Sack as Hip Healthy. The stretchy sack supports baby's legs in a natural flexed position and allows full range of motion. The 2-way, double pull zipper is easy to use, and the zipper guard protects baby's delicate skin. The 2-way zipper and narrow wrap allows parents to unzip from the foot to change baby's diaper without unwrapping the swaddle and fully waking baby, so baby falls back to sleep more easily. When baby shows signs of attempting to rollover, parents can use the Omni as a transition swaddle with arms up and outside the wrap, because the sleeves allow enough arm mobility for baby to use arms to push torso up and reposition their head if they were to roll over onto tummy. Our super soft cotton knit is breathable, stretchy, and natural. 1.0 TOG. In cooler settings, use a bodysuit underneath. 100% Organic Cotton. Machine wash. Tumble dry. Designed by nurse. Trusted and used by major US Hospitals to promote Safe Sleep. US Patents 11,659,870 & D924,539. Int'l patents EU, UK, China, and other countries.