ZEO sleep score, or ZQ formula

So I went to my friend (and cofounder/CTO of Zeo) Ben Rubin for answers.

He explained that the Zeo uses a simple algorithm that computes your total sleep time, REM sleep, deep sleep, time in wake, and how many times you were woken, then uses them to create your total ZEO sleep score, or ZQ.

Here is the formula:

ZQ= {(TST*1) + (REM*0.5 + Deep*1.5) – (TIW*0.5 + #wakenings/15)} *8.5

 ZQ = Zeo Sleep Score
TST = Total Sleep Time
REM = hours in REM
Deep = hours  in deep
TIW = hours in Wake
#wakenings = # of times you woke up

The ZQ score is heavily reliant on total sleep time.  The Zeo is expecting you to sleep at least 8.5 hours.  No matter what you do, if you sleep less than 8.5 hours a night – you’ll get a mediocre score.

Source https://blog.bulletproof.com/zeo-hack/

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