Actually now that i think about it, something like that has happened to me. I woke up and didn't bother putting clothes on when I left my room because I thought I was home alone, but it turns out my dad was home..
if i know its late at home, i'll walk to the bathroom naked...no one else is up...i dont' see the point in trying to find somethign to wear just to take a piss
It depends on how hot it is. Boxers/shorts and a t-shirt or tank top in the spring/summer, pajama pants and a t-shirt in the winter. I'd sleep naked but I'd freeze to death.
How do I sleep? Hopefully laying down and with my eyes shut. What do I wear to sleep in? Depends on weather and my mood and who is in room