That’s exactly what I mean. I never sleep much better than I would sleeping in a car.

I suppose it’s the novelty of sleeping in a moving vehicle, my flight attendant friend said it took them a while to start sleeping well on long haul flights.

Perhaps with a lot of benzodiazepines or drowsy anti-histamines I could attempt to sleep well in a sleeper train, but not normally. Happy for those who can of course.