#1: Feeling a little less than awesome? Use the data!! (Here's how I am...) (#9)

12 Aug 2020 · 12 min
12:01

Brian Johnson finished a 25-session Mastery series and tracked his sleep with specific numbers: resting heart rate of 41, HRV of 75, and sleep efficiency around 86-87%. He tested 8 versus 9+ hours in bed and found he feels sharper with more sleep, so he's committing to staying down longer.

Questions this video answers

4:54 AM

41 bpm

75 (units as reported by his device)

In bed for a little over 8 hours; got 7 hours of sleep (86% sleep efficiency).

Prior night: in bed 9 hours 24 minutes; got over 8 hours of sleep (87% efficiency).

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