Always be prepared with a spare on hand! The fitted bassinet sheet is made with 100% cotton that is lightweight and feels great on your baby's skin. The subtle crosshatch pattern is easy to mix and match. One grey cotton sheet is included with purchase of a MamaRoo Sleep® Bassinet. • Available in 2 colors: grey or white • 100% cotton sleep surface • Machine washable • Secure and snug fit • For use with the MamaRoo Sleep Bassinet only • Fabric: Top: 100% Cotton / Bottom: 100% Polyester New in package.