Cats need their beauty sleep, even if it means sleeping for 20 hours out of a 24 hour day. Since your cat is going to sleep, you might as well get it a special hammock to lay in.
Hammocks can be free-standing or attached to a window. No matter how they’re made, hammocks give your cat a place to call its own — if it doesn’t claim the cardboard box that the hammock came in first.