09-04-2018 06:57
09-04-2018 06:57
My FitBit shows the following sleep 'stages':
* Deep
* Light
* Rem
But the American Sleep Association defines:
https://www.sleepassociation.org/about-sleep/stages-of-sleep/
* Stage 1 (N1)
* Stage 2 (N2)
* Stage 3/4 (N3)
* Stage 5 or REM
Similarly - WebMD lists:
* Stage 1
* Stage 2
* Stage 3
* REM
Does anyone know how FitBit's Light/Deep sleep map to the generally accepted stages of sleep?
I tried to figure it out myself. Wikipedia states that order should be N1->N2->N3->N2->REM
(https://en.wikipedia.org/wiki/Sleep#Non-REM_and_REM_sleep)
So I looked at my charts but they seem to largely random. I found a sequence of
Deep->Light->Deep->Light->REM
Which seems to match Wikipedia, but I only found that pattern once in several days of sleep...and I see other patterns far more often.
REM->Light->REM
Awake->Light->REM
Light->Deep->Light->REM
Does anyone know how these map to the stages, and why FitBit has fewer stages of sleep than the medical community?
09-05-2018 03:05
09-05-2018 03:05
I can't answer your questions but thought you might be interested in fitbit's explanation for their use of sleep stages at https://help.fitbit.com/articles/en_US/Help_article/2163/