I have somehow gotten the idea (mostly from Reddit) that americans go to sleep early – they also wake up early and have dinner early. It's like their entire day just works in an earlier schedule than maybe some other countries in the world.
I am from northern Europe so while the spanish habit of eating dinner at 10 PM is a bit extreme, I also think going to bed at 9 or 10 is too early for an adult.
What would you say is the common, traditional way of americans? Of course every single person has a different rythm and habits, but would it be viewed as strange if someone says they go to bed at 9 pm, or would that be considered normal?