I like using sleep_place because I think how your character sleeps shows a lot about their personality. I'm always very cautious and worried about accidental meta though because if your character includes another PC's name in their description, like "@sp me is curled up next to Joe Baka", then if they accidentally disconnect in public other players can see who they are living with.
I think making SP automatically reset when a character wakes up would be best and make more people use it without worrying about having to clear it before they go out in public.