I don't understand why people are so squeamish about sleeping next to a stranger in coach, maybe its because I am a 46 year old male. I remember a Silver Meteor trip and the guy sitting next to me was part of a group of 3 and he kept asking the attendant if there wasn't some way he couldn't get seats "together" with the rest of his party, he was already right behind them so I knew what he meant. We both slept fine. People do this on planes all the time and there's a lot less space. I've never had a problem sleeping in coach on Amtrak as a solo traveler. I have taken flights, on the other hand, where I end up sitting next to some weirdos. I'll never forget one particular transatlantic flight where I was seated in the middle seat between my wife and another gentleman who had the aisle seat and at one point he started twitching and leaning over into my space, making hand gestures in my face and making strange eye-rolling faces at me when I wasn't looking at him. I could swear he had some kind of health problem except the minute I took out my phone and started taking video he stopped immediately.