Why not go all the way? And, complete your baby’s nursery with anyone of this wonderful accessory? This Nascar Crib Sheet by Trend Lab features 10in deep pockets and fits a standard 52 x 28in crib mattress. Elastic around the entire opening ensures a more secure fit. 100% cotton. Machine wash cold; Gentle cycle; Do not bleach; Tumble dry low or line dry; Do not dry clean.