The AutoTrain is a 17 hour trip to and from Florida. For us it is a very pleasant and quick trip.
This is how it is for sleeper passengers. Don't know about coach as we never travel in coach.
You check in at the terminal in Lorton before 2PM. We usually get there around 1- 1:30. You will board the train at 3PM and be called for a complementry wine chesse and snack hour. You are entitled to 4 glasses of wine per man, but they seldom count. At 5 PM they start calling people for the first dinner reservation ( times are 5, 7 and 9 PM) You will dine on some very good food, then go back to your romm. You can relax and "couch out" for a couple of hours. Most people chose to have the bed put down at 10 PM. You go to sleep, rise at sat 6:30AM shower and go to the breakfast (no reservation required) Its a cold continental breakfast (except for coffee)and its not that good but it is something. By the time breakfast is finished you are maybe 1 hour away from Sanford. At Sanford they will call your car number and bring the car right ouside the terminal.