Size:Large Â |Â Color:Blue Train The HALO SleepSack Early Walker replaces loose blankets in the crib. With its unique foot openings, the SleepSack Early Walker wearable blanket allows for greater mobility while babies are awake, but also keeps little feet covered and warm while sleeping. In addition to helping your baby sleep safer, the HALO SleepSack wearable blanket helps your baby or toddler sleep better, too. It is a warm cuddly blanket they cannot kick off; ensuring little ones sleep soundly throughout the night. The HALO SleepSack wearable blanket becomes the trusted bedtime routine, providing the secure feeling he needs to fall asleep fast and sleep soundly throughout the night.