SOFT and BREATHABLE: The 100% Muslin Cotton bassinet sheets redefine comfort for your baby. Crafted with luxurious softness and breathability, these sheets create a truly happy sleep experience. Perfect Size, Secure Fit: Oval 33″x17″, Hour Glass 30″x18″, Small Rectangle 28″x14″ and durable.our sheets boast a dreamy fit with elastic edges, providing a secure and snug embrace for your little ‘s bassinet mattress.