Random gaps during sleep measures

hi all,

has anybody noticed errors - gaps - in sleep measurements (see pic.)? I remember all was good using my first and second F5X.. I have experienced this issue on 3rd F5X (after warranty replacement).. and now seeing the same on F5X+.. Obviously this gaps are corresponding with the gaps in HR monitoring.. Still I do not get why it sometimes does not catch any HR during sleep for couple of minutes..

note: I always use the latest beta FW - in case you think it can make a difference..

thanks!

ciq.forums.garmin.com/.../1445375.jpg
  • I think this is issue regarding software HR.
    Because in my case when i didn't see green/red lights f5x+ show me my pulse is 240.
    At night oxygen works only from 00-04 at every nights.

    From my perspectivesleep measure in all garmin watchs is very poor.
    If you will see others companies have better software to measure sleep example:
    1) show you the score of the sleep
    2) Can wake up you when you don't sleep deeply
    3) detect if you sleep at day
  • Unfortunately, both the OHR and the Sleep feature are very poorly executed by Garmin on these watches. I had much better results, HR and Sleep, with a 4 year old Fitbit Surge. Pretty sad, really.