It’s absolutely true that a lot of modern-day problems with being tired come from bad sleep habits. What I’m talking about is a real phenomenon that isn’t being in front of a screen too close to bedtime. If anyone wants to know more, here’s a 3-minute video from AsapSCIENCE about what research shows.
society does not work on a 9-5 schedule. Ever since we stopped living in tribes every society has had to have people who are up when others are asleep. Most people like to sleep in the night and be awake in the day. Thats ok