What percentage of people actually can get 8 hours of sleep? I do not sleep 8 hours. I can be on vacay in an R&R destination and still not get 8 hours of sleep.

Dupe: https://news.ycombinator.com/item?id=47298322

"Starting school later might really help sleep-deprived teens" (2016) https://news.ycombinator.com/item?id=13205675

"Schools shift as evidence mounts that later start times improve teens’ learning and well-being" (2024) American Psychology Association https://www.apa.org/topics/children/school-start-times