The HALO SleepSack wearable blanket replaces loose blankets in the crib that can cover your baby s face and interfere with breathing. In addition to helping your baby sleep safer, the HALO SleepSack wearable blanket helps your baby sleep better, too. It is a warm cuddly blanket they can not kick off, ensuring baby sleeps soundly throughout the night. Used in hospitals nationwide, the HALO SleepSack wearable blanket is the number-one choice of hospitals and is recognized as "Hip Healthy" by the International Hip Dysplasia Institute. HALO also proudly supports nonprofit organizations like First Candle/SIDS Alliance.