I don’t mind waiting rooms. Lobbies, hallways, trains, etc. I find too much comfort in the wait. I can easily sit in a chair and fall asleep in the middle of a crowd as long as I’m waiting for something.
I found my best sleep on the train ride from Chicago to Aurora. In the middle of dozens of people, I could let myself go completely and fall asleep. Defenseless and no desire to even bother with caring.
update: there’s been studies on this