Ergobaby On the move sleep Bag is a 2-in-1 wearable blanket made with ultra-soft and breathable cotton that keeps your baby cozy and snug both while asleep and out of bed. The sleep Bag features adjustable shoulder snaps for easy on & off, while the two-way zipper is amazing for quick diaper changes. Easily transition from sleep time to wake time using the tuck away feet holes - perfect for a new walker or toddler who's always on the go.