Keep your sleeping infant warm and safe with this HALO SleepSack wearable cotton blanket. Endorsed by First Candle/SIDS (Sudden Infant Death Syndrome) Alliance, the unique sack-like design of the SleepSack eliminates the need for loose blankets and easily slips on while she"s sleeping. It also makes it easy for parents to keep Baby covered and warm through the night. The SleepSac is sleeveless to reduce the risk of Baby"s re-breathing into the sleeve as well as overheating. Features an inverted zipper that won"t catch on Baby"s chin, is harder for her to unzip and makes diaper changing easy. The Back to Sleep logo embroidered on the front reminds caregivers to put babies to sleep on their backs. Small (0-6 mos.) fits babies 10-18 lbs; and medium (6-12 mos.) fits babies 16-24 lbs. 100% flame-resistant cotton. Machine washable. Imported.