SlumberTime Naturally 4-Inch Mini Crib Mattress with 100% Cotton Fitted Crib SheetThe SlumberTime Naturally 4 Inch Mini Crib Mattress with 100% Cotton Fitted Crib Sheet by Simmons Kids was designed with your baby's health, safety, and comfort in mind. It delivers all the benefits of a full sized crib mattress in the convenience of a smaller size to fit mini cribs. The fiber core of the mattress made from recycled bottles delivers a firm yet lightweight sleep space while the naturally blended cotton cover is soft, breathable and