ooooh....so that's how they wear their clothes. I always thought that those that have tails and wings, that they can't hide, have small holes on their clothes where they would just shove through. Then again, how do they sleep with their wings sticking out...
Lying on their back should work. Its not like they are sleeping on hard floors. They gotta be sleeping on like feather mattresses. They just shouldnt be able to sleep on their side. then again, I dont got wings.
ehn, if they folded the wings flat against each other, they could sleep on their sides pretty easily... on their backs would actually hurt the connection to the back regardless of how soft the bed is though. (The pressure, even if slightly softened by the erm... softness... is still there, and if it is constant it would create tension.) Not to mention rolling... You know... I think I put way to much thought into this.