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How is deep sleep differentiated from light sleep?

Former Member over 4 years ago

I seem to have none or only one hour deep sleep per night. And during that period, my breaths per minute and stress level are not the lowest rate. Does that make sense?

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WTAFT over 4 years ago +4

Just to maybe help with your own interpretation of your data, the following is what I posted in another thread regarding my own data and use of a Garmin watch over the past 6 months:

I have researched…
WTAFT over 4 years ago in reply to WTAFT +2

And just to add a couple more thing I have noticed. The Garmin sleep tool also often gets awake time wrong. It sometimes shows me awake for long periods during the night when I was clearly not awake. Of…
1517701 over 4 years ago +1

Yeah just FYI, none of these sleep trackers actually "know" what sleep phase you're in, it's a "best guess" based on whatever algorithm they came up with to guess what sleep phase you're in based on what…

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0 4300260 over 4 years ago

I have found many features on the vivoactive 4 to be fairly erratic. I find heartrate seems accurate but I feel like the spO2 and the sleep stage tracking to be really weird.

I often wake with over an hour of deep sleep then find its 20 minutes by the time noon comes around. It also reckons i get 3+ hours of rem sleep every night too and often my rem is more than light. I have booked in for a sleep study out of interest to see what my results are there in comparison.

I much preferred using garmin watches for running only when I had my forerunner because the new watch has actually caused me a lot of anxiety due to the sleep stages, spO2 readings and respiration rates. The stress settings also causes undue anxiety because it often reads high stress when I am sitting at rest.

0 Al P over 4 years ago in reply to 4300260

4300260 said:
I have booked in for a sleep study out of interest to see what my results are there in comparison.

http://www.appcessories.co.uk/how-do-smartwatches-track-sleep/ it's a few years old but interesting insight.

0 Garmin-AmberD over 4 years ago in reply to 4300260

4300260 said:
I have found many features on the vivoactive 4 to be fairly erratic. I find heartrate seems accurate but I feel like the spO2 and the sleep stage tracking to be really weird.

I often wake with over an hour of deep sleep then find its 20 minutes by the time noon comes around. It also reckons i get 3+ hours of rem sleep every night too and often my rem is more than light. I have booked in for a sleep study out of interest to see what my results are there in comparison.

I much preferred using garmin watches for running only when I had my forerunner because the new watch has actually caused me a lot of anxiety due to the sleep stages, spO2 readings and respiration rates. The stress settings also causes undue anxiety because it often reads high stress when I am sitting at rest.

Hello! Here is an article that answers many questions questions regarding sleep. What is Advanced Sleep Monitoring in Garmin Connect?

0 4300260 over 4 years ago in reply to Garmin-AmberD

Hi,

I actually do most of what is mentioned in the article but find theres periods of no movement in the night with low heart rate that dont get scored as deep sleep but then parts when im moving more do get scored as deep sleep. Perfect example is last night, I had no movement at 12.30am and a heart rate of 54bpm yet it recorded light sleep. Whereas at 11.10pm I had a bunch of movement and a 63bpm heart rate I was recorded as being in deep sleep.