For multi-country trips, you want a European rail pass, e.g. from this site [1]. A 5-day ticket for the entirety of Europe is about $480, though you get a 15%

For multi-country trips, you want a European rail pass, e.g. from this site [1]. A 5-day ticket for the entirety of Europe is about $480, though you get a 15% discount for two people. If you're only doing 4 countries, it's about $360. For $968 you get unlimited travel for a whole month. As for sleeper cabins, prices vary depending on the route, but it's often somewhere around $20-50 per night per person [2] for a private, multi-bed "couchette". Comparing US states to Europe is a bit like apples and oranges, though. [1] https://www.eurail.com/en/eurail-passes/global-pass https://www.eurail.com/en/eurail-passes/global-pass [2] https://www.eurail.com/en/plan-your-trip/about-reservations/reservation-fees/night-train-reservation-fees https://www.eurail.com/en/plan-your-trip/about-reservations/...