I have a quick question about bedding. I use plain old pine shavings for my guinea pig's cage, but lately I've seen many people using carpet or fleece in theirs. It looks a lot cleaner and nicer, and the pigs look quite comfy as well. I want to try fleece, but won't the pigs chew on it? Plus, doesn't it get soiled easily because of the pigs' urine and feces? Or, is it easier to clean because you just pop it in the washer? Any information and/or tips on the matter would be greatly appreciated! Thanks!