Halo's founder, Bill Schmid and his wife lost their first born to SIDS. From this tragedy, HALO and its mission were born. Today, HALO SleepSack Wearable Blankets are the #1 trusted choice of hospitals and are used to help babies sleep safely from the start. 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, with a unique, roomy sack design recognized by the International Hip Dysplasia Institute as "hip healthy." Inverted zipper opens from the bottom for easy diaper changes; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit. HALO donates a portion of every purchase to First Candle/SIDS Alliance and The Canadian Foundation for the Study of Infant Deaths.