“No sleep data detected last night”

I have this message a few days ago when my fr 255 was in 20.26, i updated to the latest fw thinking it may solve the problem. But i had the same problem. It records body battery, stress, HR; but when i check sleeping data, it says “No sleep data detected last night”. Anybody has a similar problem solution for this problem?

  • Update

    Whenever the algorithm records a nap where there was none and the bedtime was 20:14 instead of 21:14 like yesterday, the values ​​are useless

  • I've experienced this issue with the last sleep data recorded for 24/10/24 which is around the time my watch updated to 20.32.

    1. Yes

    2. Yes - 1100 to 0700 daily.

    3. Yes.

    4. yes.

  • Same issue here. 

    It's recorded HR data last night but no sleep. Most have had 8+hours. Amongst other things it's messed up training status.

    Stress had recorded 

    Body battery climbed all night to 85 then crashed to 35 as soon as I woke up. 
    Edit;- It seems to have logged HRV throughout the night but no overnight average as i "didnt" sleep.

  • All, 

    This has been addressed in software version 21.16 which is currently in beta: Public Beta Version 21.16 - 100%

    Feel free to wait until our live software version is released to test the fix, but if you install 21.16 please let us know if you still don't receive sleep data on certain nights (with permission to reach you via email).

    Thank you!

  • Obviously it's not only a FR255 problem. My 4 weeks old FR265s has the same problem. I already did three factory resets and brought it back to the store. They told me to give it another try after the third reset. Sleep and HRV worked for two days, in the morning there was again no data. I did a restart and I'll see next night. HR is recorded during the night. I don't know if I should go to the store again the next days so that they'll send the watch to Garmin and receive a new one or not. Or if I should wait for a software update and hope that it'll fix that problem. If it's software related a new watch wouldn't help.

  • My most recent statement pertains to the FR 265 as well. Please either enroll in beta or wait for our next live software version and let us know if you still see that your sleep is not being detected. It is software related so you're correct, a new watch will not change anything. 

  • Yesterday I installed the 21.18 beta. At least this mornig I had sleep data and HRV. I'll see the next days.

  • 1. yes

    2. Well it depends, it's 22-08 and the actual sleep was 2:00-10:21. I am not very good in sleeping at the time I set on the watch, but this is the 1st time I actually slept, slept good and long, started to sleep inside the window and it wasn't detected.

    3. Yes

    4. Yes

    fr965, FW: 21.19

    As you can see it's clearly visible that HR is on (24/7) and both body battery and stress detected I was resting. I really don't know why it didn't register sleep. Usually the opposite happens: I watch a movie (so I hardly move) and it thinks I was sleeping.