This is my first trip on Amtrak. I'm taking the Crescent in coach from Hattiesburg, MS (9:30 am) to Greensboro, NC (3:37 am) this Sat., June 28th. I plan to have a personal wake up alarm, but do they have train attendants that check to see if you're alert and ready to get off? If you have any other suggestions for my first trip, please feel free. Thanks!