Hemp/Organic Cotton Overnight Insert consists of Hemp/Certified Organic cotton. Snap overnight insert into cover then snap regular insert of your choice on top.
Small - Size - 11" and ideal for babies from birth - 14 lbs
Medium - Size - 12.75" and ideal for babies weighing - 11 - 22 lbs.
Large - Size - 13.75" and ideal for babies weighing - 16 - 35 lbs.