Thanks to this awesome forum we ordered a new, extra large cage today with fleece flippers. Our pigs have been in a smaller cage with bedding and a house like a pigloo but bigger. Our house tends to be on the colder side and I think the bedding has done a good job of keeping them warm. My question - With the houses (we'll have two now in the new cage) on top of fleece flippers do I need to put something else in their houses to keep them warm? We will only have bedding in the cavy kitchen and I don't want them to be cold. I'd like to find different house that they will like too, although they do like to climb on top of the current ones. Thanks!