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by eginhard 837 days ago
Sleeper trains need a supplement and are often booked out in advance, so he sleeps on the night ICE trains (https://leben-im-zug.de/howto-nachtreise-im-ice/). These are regular trains with standard seating only, all lights on and announcements for the (frequent) stops at normal volume. He mentions that he sleeps on an air mattress on the floor.