In 2026, most standard train compartments (seating areas) do not have individual private bathrooms; instead, restrooms are located at the ends of each carriage for communal use. However, on long-distance sleeper trains like the Caledonian Sleeper in the UK or the Amtrak Viewliner/Superliner in the U.S., higher-tier private rooms (such as Club Rooms or Bedrooms) do feature private, en-suite "wet rooms" with a toilet, sink, and sometimes a shower. In standard sleeper "Roomettes," passengers usually have access to a shared restroom down the hall, though older Viewliner cars famously had a toilet inside the room (this design has been phased out in newer models for hygiene and comfort). For high-speed day trains like the TGV, Shinkansen, or ICE, the "accessible" restrooms are quite spacious and modern, but you must still leave your seat and walk to the end of the car. If you are traveling on a regional or commuter train, bathrooms are less guaranteed, so it is always wise to check the train's amenities on the carrier's website before a long journey.