On other Mud forums I've seen people talking about their first experience in SD, or I guess, their second experience in SD, of waking up in a locked room. Regular characters know this is a consequence of sleeping in public, but newer players may not be familiar with this mechanic and expect to *pop* back out of existence. When they wake up they may think they're being punished or something.
If we don't already have it, could there be some messaging IC/OOC to let them know why they're there? Like you wake up in the room and it says [OOC] You were likely brought here because you fell asleep in a public location, and were moved here to protect your character. Do x to leave this place.
Or it could be IC: A giant sign on the wall says "Don't fall asleep in public! You will be charged with vagrancy and confined. (Do x) to leave this room. Obey the LAW.
Once again, if this is already present, please disregard. I asked on xgame a few times but never heard if it was a thing already, and I don't have access to this zone.
I'm suggesting this because it could possibly sour the experience for someone to be confined without knowing the reason why. Knowing why can turn that into a completely different experience.