I've got four hens. They used to all sleep in one corner, two shoved into the "nest box" we made, and two in front. I've never found an egg in the "nest box," but my Polish got used to laying her eggs right in the corner where she sleeps. Recently, one of the birds, my Black Star, (she lost her near-top dog place when she was gone for a month healing from a dog attack), has decided to actually use the roosts (2"x2") we put next to the nest boxes. Although, it seems like she sleeps in a different location every night! Sometimes, she's in the "nest box" above the other two, sometimes she's on the roost, sometimes she's actually on the nest where they all lay their eggs. My Polish & cochin are both hatchery birds (got them when they were 10 mo. old or so), so I think that due to limited space, they got used to sleeping on the floor. My Black Star & Wydonnette were both chicks when I got them, so I think they're just following what the older birds do. I've just been letting them sleep where-ever they want to. They do seem to "nap" on the wood I've placed throughout the yard to protect my flowers from them. They aren't stupid enough to sleep in an uncomfortable position if they have the option to sleep otherwise.