Not asleep.

[GaiusCoffey]

Hi,
I frequently need to delete sleep records from the evening as Surge cannot distinguish between relaxing with a book and sleeping.
Is there any way to configure sleep detection to make it less trigger happy?
G

[SunsetRunner]

Check your Sleep Tracking settings (Settings page. Devices tab). If it's already "Normal" then... it doesn't seem there's an even more resistant setting (yet). Maybe someone added that as a feature request, and you can vote for it?

[GaiusCoffey]

Yep, set to normal - I played with setting it to sensitive and it halved my sleep! Normal is more realistic for what is happening. Seems to work well when I'm actually sleeping... Just not so much when I'm taking it easy in the evening.

[SunsetRunner]

My device does a pretty decent job tracking my sleep. When I look at the HR track from the previous day, there is a decernable difference between "evening relaxing" heart rate of mid- to upper-50s and "asleep" heart rate in the upper-40s to low-50s. Not sure if Fitbit is using this data to track sleep or if it's purely based on some accelerometer/stationary basis.

[GaiusCoffey]

My resting pulse has been a bit nuts since getting the Surge. It started with a pretty consistent downward trajectory as I was running a lot more, then I got a lung infection and resting pulse rocketed, now the resting pulse is going down again. When I was sick, it could correctly detect sleep despite a pulse that hit 175 for about half an hour (seriously; it was a heavy dose) and on subsequent nights ranging from 60s to 100s.

Based on that, I'd say it must primarily use accelerometer for movement instead of just pulse.

[shipo]

I guess I should consider myself fortunate; my Surge nails my sleeping patters almost spot on.  That's good because I have severe sleep apnea and use a CPAP when I'm in bed; even still, I can see my sleep pattern change as the seal on my mask ages and starts to leak.

[shipo]

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@GaiusCoffey wrote:

My resting pulse has been a bit nuts since getting the Surge. It started with a pretty consistent downward trajectory as I was running a lot more, then I got a lung infection and resting pulse rocketed, now the resting pulse is going down again. When I was sick, it could correctly detect sleep despite a pulse that hit 175 for about half an hour (seriously; it was a heavy dose) and on subsequent nights ranging from 60s to 100s.

Based on that, I'd say it must primarily use accelerometer for movement instead of just pulse.

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Holy crapski, a resting pulse of 175 while you were asleep?!?  That's seriously scary stuff; I get nervous when my pulse gets above 40 when I'm sleeping.

[GaiusCoffey]

Yeah, it was not a good week - turns out lungs are quite important to general well being - antibiotics sorted it though.

[shipo]

Glad things are working out for you.  I'm curious, what is your normal resting and sleeping heart rate range?

[GaiusCoffey]

Still in flux, but I think somewhere between 60 and 70 is about normal.

[shipo]

Wow, huge improvement; glad you recovered well.  🙂

[GaiusCoffey]

So now it is also picking up reading in the morning as sleep...

If it cannot be adjusted, can I turn sleep recognition _off_?