Ok this may seem like a weird question, but has anyone ever heard of a snake hammock. Our milksnake Spitfire likes to stay at the top of his tank in the cardboard my son never took of the wire lid that is on the tanks. It seems that it won't last too much longer and I'd like to replace it with something a bit more permanent. I did a search, but didn't see what I'm looking for. I guess it would be a bit like a ferrets hammock