You're missing a night somewhere. Day 1 10:00 - Day 1 14:00 means you need a hotel room Day 1. Day 1 22:00 - Day 2 10:00 (more like 6:00 IME tho) means no hotel

You're missing a night somewhere. Day 1 10:00 - Day 1 14:00 means you need a hotel room Day 1. Day 1 22:00 - Day 2 10:00 (more like 6:00 IME tho) means no hotel room for Day 1. Train stations in Germany at least generally have luggage lockers, so you can just leave your stuff there. It's not hassle free, of course, but pretty convenient. Not sure if that's common in other countries.