My "coop" is actually an independent stall built in our low barn, and so it has the cement floor that is in the rest of the barn. My fiance (who lived here for years) says that his family never used bedding for the chickens in there, and if they were cold they'd just go up on the roosts. Is that the correct way to do it? If so, how do you clean the coop out? It seems like they'd get awfully cold AND it'd be nearly impossible to keep clean.