>I think you may be having a selection bias here: there is a lot of people who sleep 8-9 hours at night who are in high income brackets (I think that’s what you

>I think you may be having a selection bias here: there is a lot of people who sleep 8-9 hours at night who are in high income brackets (I think that’s what you mean by “successful”, even though that’s a debatable metric). I'd disagree. Numerous studies with large sample sizes show the average sleep in America is 6 hours and change. I'd need to see some hard evidence that there are "a lot" of people, that is, a statistically significant number of high-earners, who sleep 8-9 hours. In fact, there is evidence to the contrary of your claim: >Turns out, the difference is pretty negligible — the "successful" people get 12 minutes less than the average American. According to this 2013 Gallup poll, the average American gets 6.8 hours of sleep every night. https://www.npr.org/sections/thetwo-way/2015/12/24/460929475/how-do-successful-peoples-sleep-patterns-compare-to-the-average-american https://www.npr.org/sections/thetwo-way/2015/12/24/460929475...