Earlier quoted context omitted.
I thought the same as I was reading the comment you're responding to. Arriving rested after public transport? Get a load of that guy :) Not sure how anyone does that, but of course it would be nice to learn this dark magic.
First class sleeper cabins would count. Definitely not equivalent to a hotel room but better than a couchette. The definitely ran between Germany and the Netherlands in the 00s because I took at least one trip that way.
* couchette (6 couchettes per cabin, less comfort)
* 2nd class bed (3 beds per cabin)
* 1st class bed (same as 2nd class, but 2 beds per cabin)
* 1st class private bed (same as above, but without roommate)