There is now a 10 hour soundtrack of the sleeper train to drift off to or use as background sound for a layout.
Caledonian Sleeper Launches Dreamlike Soundscape for World Sleep Day (https://www.sleeper.scot/news/caledonian-sleeper-launches-dreamlike-soundscape-for-world-sleep-day/)
Does it include the bit with a slightly mashed Glaswegian going down the carriage banging on all the doors trying to find his mate ?