Just un-fasten its belly and the pet becomes an 18" pillow! Washing instructions: If your Pillow Pets plush animal gets dirty and needs a washing, here's how to do it — Place your Pillow Pets plush animal inside a white pillow case and tie off the open ends. Putting your Pillow Pet plush animal inside a white pillow case prevents the washing machine from beating up the fibers on the item and increases the life of your pet. Wash on gentle cycle and cold water. Do not put in dryer! Let the plush chenille fabric air dry in a warm sunny place. All Pillow Pets products require the same care.