I want to make sure my lionhead is as cosy as possible this winter and was thinking of lining his hutch with vetbed? (Hutch is outside in a sheltered area) He uses a corner litter tray (clever bun had it figured out in 20mins!) so I'm not worried about him dirtying it, just ingesting it? I was also going to cover the hutch with a blanket and then something over the blanket to stop it getting wet? If I do this should it over cover it at night and let the sun in during the day?