> Train service in the US is terrible compared to what is in the EU.
And train service in the EU is terrible compared to Japan.
If EU/US trains ran like Japanese Shinkanzen then there would be exactly zero need for night trains.
You would board a clean train, that departed on-time, and whisked you along the countryside, reaching your destination hundreds of miles/kilometers away in 3–4 hours.
Before the pedants arrive, yes I am aware there are some night trains in Japan, but they constitute 0.0000001% of Japanese train services, and are mostly a fun-tourism thing.