Microfleece and polyester cover is easy to remove and machine washable. This lounger will provide many hours of use and be a favorite sleeping spot. Window Lounger folds up and out of the way, leaving window shades and curtains still operable. Remove the cover from the kitty sill. Machine wash cover only, separately. Mild detergents, no bleach. Cold water, gentle cycle. Air or line dry. Dry completely before reassembly.