Bacati - Liam Aztec Coral Feathers 3-Piece 100% Cotton breathable Muslin Toddler Bedding Sheet Set: Includes fitted sheet, flat sheet with fitted on one edge and pillowcase. All Pieces are made from 100% Cotton Bacati Signature Premium Muslin Fabrics. Coordinates with rest of the products in Bacati - Tribal and Aztec Bedding Collection. Fits all US standard Crib and Toddler Mattresses. Age Range: 18 months to 8 years. Care: Machine Washable, gets softer with every wash. Imported. Cotton is Breathable, making it more comfortable in extreme climates. Cotton is inherently soft on baby's delicate skin, durable and user friendly. Cotton's gentle quality makes it appropriate for babies with very sensitive skin or skin allergies. Cotton Muslin is breathable, comfortable and inherently very soft.