I almost splurged and booked one of the sleeper compartments, but it was $180 and that's just way too much money. The dollar is so damn weak and everything is brutally expensive, so I'm trying to not overdo it with my spending. The reclining seat was only $56, and I remember sleeping really soundly in those train seats (big and roomy), so I don't think I'll have a problem this time around. I like sleeping on trains... it's so nice how they rock you back and forth. Plus there is a lounge car just in case I can't sleep and would rather lounge.
I loved having an enclosed compartment all to myself when I took the train from Wroclaw to Berlin last year. And I got some cheap thrills when the German and Polish army guys came banging on my door to check my passport at the border (Hello? Oh, Guten Morgen! Don't mind me in my little black nightie!) heh