[PodCurator]

I used to do this too. Then I realized this only works if you actually sleep 7.5 hours and it takes average human 14 minutes to fall asleep. I.e. I’d set an alarm 7:30 from when I go to bed but then still felt tired - doing 8 hours felt better with 7hrs45ish the sweet spot. Hence I can see why people just recommend 8 because normal people don’t try to optimize to the minute and better to slightly over estimate rather than definitely underestimate