My cat, Gilligan, loved sleeping on the fake snow under our Christmas tree (gotta have fake snow to go with the fake tree) so much that when I took the tree down, I didn't have the heart to take away his new favorite bedding. So I stuck the snow in a box under our bed, and now whenever we can't find Gilligan, we know exactly where to look. "Gilligan's sleeping in his snow box again!"
Cats are cute. You have to humor them.