I am offered room#20 in the trans/dorm car for my CHI to LAX trip. This will be my first reserving a rommatte in trans/dorm room. I am guessing this car will be next to the baggage which is behind the locos. Is room# 20 close to the next to the regular sleeper or next to the baggage car? How is the engine noise and horn? Were you able to sleep? How about the smoke? Does it get inside the cars? Were you mostly ignored by the attendant?