The nap trick is my method for beating jet lag. After a long TATL flight, the goal is to arrive in Europe as late as possible (Noon is better than 6am), check into a hotel, take a nap for a few hours (3 to 5), then get up and do things until no earlier than 10pm...with the goal of having a normal night.

This almost always works for me. Last fall, we arrived in Milan around 9am, transferred to Sestri Levante by train at 2pm, checked in immediately, took a nap until 6, and then went out and explored the town and had dinner. By the next day, we were on a normal cycle and never looked back.

We are quite familiar with Berlin!