HALO's 100% cotton SleepSack wearable blanket in the Space print takes the place of loose blankets in the crib, keeping baby cozy without bedding that can cover the face. The sleeveless design helps reduce the risk of overheating, and the inverted zipper opens from the bottom for easy diaper changes. Signature Back is Best embroidery reminds caregivers to place baby on the back to sleep, and the roomy sack design is recognized as Hip Healthy by the International Hip Dysplasia Institute. Lightweight TOG 0.5 cotton, suitable for warmer rooms. Wear over regular sleepwear; machine washable. Small size.