I have four Australorps and their roost is a 2x4 with the flat side up. Three of the chickens just stand awkwardly on the roost and the fourth sleeps in the bedding in the corner. I would really like to see them hunker down over their feet since it is starting to get cold...but it seems like there is huge variance in chicken sleeping habits and whatever they enjoy doing is probably fine. My husband thinks I'm over thinking it.