So our lil girl had unexpected babies today, we had no idea she was pregnant so we didnt have the cage setup for it. She has them in her Igloo but Im a little worried that the babies might wander out... Should i make a small lip to put at the bottom of the igloo entrance? Like maybe just an inch of cardboard or somthing? or should i put a whole new box in made out of a ice cream carton? Ooor should I just leave her be? Shes also on fleece, i put some strips of papper towel in the cage but i heard its best to have shavings, what should I do!