I am unsure of what to cover the hutch floor with. At the moment I cover it with hay, the same as with their bedding except a much thinner layer. I am not sure my rabbits like this as they tend to sweep it out of the way and prefer to lay on the wooden floor of the hutch. Is this any good for them? I dont really want to use saw dust as Dewi has long hair and this would get tangled up in his coat, what would you suggest instead?