Crib Bedding Bundle. 100% cotton percale 220 thread count fitted crib sheet is available in solid colors and current fashion prints to match any crib collection. Fits standard size crib mattresses 28" x 52". 100% cotton percale crib skirt adds a touch of luxury to basic infant crib bedding. The durable 100% cotton centerpiece covers the crib spring or board to help protect the mattress. The crib bed skirt is 13.5" deep with a finished baby hem and split corners to help make changing it quick and easy. Machine wash, tumble dry low for best results.