Using your Sleeping Cat Sleepshirt is as easy as putting on any other sweatshirt. Just slip it over your head and adjust the drawcord on the hood if you like. It's great for lounging at home, sleeping, or just hanging out with your pet. When it comes to maintenance, you're in luck because it's machine - wash safe. Just toss it in the washing machine on a normal cycle. But remember, the preview images might look a bit different from the real thing in terms of color because of the lighting when we took the product photos or how your monitor shows colors. Other than that, enjoy your unique and personalized sweatshirt!