Hi, i was just wondering can cats stay outside all day and all night even with the weather getting colder. One cat is used to being outside a lot and the other has always been an indoor cat but now gets put outside all the time. Only have old sofas for shelter and come in to be fed then gets put straight back outside again. No water put outside and there are cats that live next door. These are not my cats, they belong to someone i know. Thanks.