Do I need a Japanese transit visa to transfer in Tokyo?

The 72-hour transit visa is not a visa on arrival and is governed by relevant public international law.

Connecting in Japan, connecting on the same day or connecting on the next day, depends on whether the airline has a suitable connecting flight on the same day, and the ticket has been made clear as soon as possible. If you really need to change planes the next day, you just need to leave two counters on the right hand side in front of the airport customs clearance counter, one is JL and the other is ANA. With the ticket and passport, you can easily get a 72-hour transit visa (only this kind of transit visa). Doesn't mean you can use it for 72 hours before you leave. You must arrive at the airport and leave Japan before the connecting flight indicated on your ticket takes off.

Moreover, the airline provides free accommodation and transportation between the airport and the hotel. Most hotels are transit hotels near the airport, and there are no public transportation lines. You can only sleep after you check in.