Not sure about vetbed, but my indoor bunnies have rugs down... they have 1 large one, which is going to be replaced soon, as they've been chewing it. The also have some little ones - 60x90cm 'rag-rugs' from tescos.. get this: 45p each :shock:
It says not to wash them, but I have (on it's own)...
I'm thinking of putting some of them in the outdoor hutches too, but just have to watch for chewing etc.
they should still use their litter trays - but it is more of a pain to clean them if they don't :?