Good on ya for doing this experiment! Enjoyed your wrap-up notes. Curious if you nocited any other differences alertness at work? Change in appetite? Thanks for sharing the results. But may I politely dispute your success rate?I think you have to measure your success as an increase from your baseline. Had you slept one night for 5 hours 30 minutes 15 minutes more than your average would you really count that as a 68% success rate? That's what you've done here. In other words, your 82% success only counts if you ignore the 5 hours 15 minutes of sleep you were likely going to get anyway. If your baseline was 5hrs 15m a night prior to the experiment, then you would have normally slept 42 hours during an 8 day period. (5.25 h x 8 days). Your goal was to increase that to 64 hours (8 hours x 8 night), or get an extra 22 hours of sleep (64 hours minus 42 hours). You ended up with 52 hours and 35 minutes out of the target 64 hours , or 10 hours, 35 minutes more than your baseline. That's 10.58 extra hours out of your desired extra 22 hours or 48%. That's still respectable doing anything that's good for you 48% more than before is great. And if you just look at your increase in sleep from 42 hours to 52 h, 35 min you actually slept 25% more over the 8 days. Which is great!