The Halo Sleepsack is the No 1 Brand recommended by doctors and used in hospitals for safer sleep. The American Academy of Pediatrics recommends the use of wearable blankets to maintain a healthy sleeping environment for babies. The award-winning Halo® SleepSack® wearable blanket replaces loose blankets in the crib that can cover your baby’s face and interfere with breathing.In addition to sleeping safer, it helps babies sleep better, too. It’s a warm cuddly blanket they can’t kick off; ensuring baby sleeps soundly throughout the night.