My couch really appreciate this cat furniture. lol My cats sleep and basically lives in this. The cardboard is refillable. Just flip it over where there's a little bit of wear. then go to any pet store for the insert. I love seeing my cats running and jumping on this. it so cute and of course comes with cat nip. The product is small and fits perfectly in the corner, along a wall, or anywhere else you might want it. My cats love this and have never had any problems with it.