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.
I get what you mean, but the video linked uses the term and is 9 years old. Wiktionary claims it was popularised by a book from 2012.