Roomette

Is there a website or other resource that list trains with sleeping car?
Are there trains you can sleep on?How do I book a sleeper car on Amtrak?What trains have sleeper cars?Are Amtrak sleeper cars worth it?How much is a s...
Amtrak shared roomettes - am I allowed to sell the unused bed to another traveller?
What is the difference between a roomette and a bedroom on Amtrak?What is included with an Amtrak roomette?Do you have to share a roomette on Amtrak?D...