How to ensure ISM is continuously monitor my sleep at night?

There's few occurrence that my index sleep monitor ISM did not detect during my sleep, last night it happens again, this morning when I wake up and check, the battery is healthy with 51% . May I know what happen ? I wore iSM every night for monitoring , and this has broken my streak 30-day , I have previously faced the same thing, I have also double check that the ISM's optical LED is red/green after wearing it.

Is there a way to double confirm the ISM is activated when I wear it?

Edit: my ISM is always connected and synced with my Garmin Connect via bluetooth/WIFI . Though sometimes it may need to "trigger" to wake and sync.

Top Replies

DoctorCool 11 days ago +1
I do the following to confirm the ISM is connected and working:
1. Hold thumb on sensor for two or three seconds and remove
2. Watch sensor light up
3. Put ISM on my arm
4. Feel the vibration telling me the ISM is o…

All Replies

0 DoctorCool 11 days ago

I do the following to confirm the ISM is connected and working:

Hold thumb on sensor for two or three seconds and remove
Watch sensor light up
Put ISM on my arm
Feel the vibration telling me the ISM is on
Look at GC on my phone and watch the ISM sync once.
Turn of phone (I do not like it on at night)

Morning

Take off ISM and turn inside out
Turn on phone
Let sync
Watch GC and watch sleep data populate
Turn on BT watch
Sync watch
Done!

0 slugwalker 11 days ago in reply to DoctorCool

DoctorCool Thanks for your guidance. I always press and hold the optical sensor for few seconds to initiate the red /green LED before wear it. I am not sure if my sleeping time (11.30pm to 5.30am) affects the ISM connectivity, last night I slept earlier at 11pm, half an hour earlier than my preset sleeping time?

0 DoctorCool 11 days ago in reply to slugwalker

slugwalker You are welcome. I do not think sleeping time impacts whether or not the ISM monitors your sleep. I think the main thing is making sure the ISM is a) turned on and active when you put it on and b) has sync'd at least once with GC before going to bed. But that is just my $0.02. I have had success though with the ISM following the above without any connectivity drops. Hope that helps.

0 slugwalker 10 days ago in reply to DoctorCool

Well, I will follow your way to make sure sync both ISM and GC again before sleep. Thanks