The Dr Seuss Cat in the Hat Flannel Crib Sheet features 10 in deep pockets and fits a standard 52 in x 28 in crib mattress. Elastic around entire opening ensures a more secure fit. The Sheet features a scatter print of the Cat in the Hat peeking from various shapes. Fabric is made from 100% cotton. Care Instructions : Machine wash cold gentle cycle, do not bleach. Tumble dry low or line dry. Do not dry clean.