Charge 5 not recording sleep correctly and says 3 hours avg is good

[sjasone]

I've seen some the older posts on the topic so asking here in case I have missed anything.  Although I am going to bed around 10:30 to 11:00 and fall asleep relatively quickly, the device is consistently recording my bedtime hours later.  Usually around 3:30am.  The report page reports that I am getting an average of just under 3 hours of sleep and "Keep it up, you've been getting enough sleep recently!"

This feature is clearly broken and I'm quickly reaching the conclusion that I should return the unit.

Here is what I have tried:

1) Updated FW

2) Reset

3) Turned up sleep sensitivity

4) Made sure the fitbit is snug on my wrist.

5) Been wearing it to bed every night for a week

[charleskn]

@sjasone That sounds frustrating.

I am going to suggest some counter-intuitive actions:

• Choose the normal (not sensitive) sleep setting. In sensitive mode, your device records nearly all movements as time spent restless or awake. This se...
• Don't wear the Fitbit too snugly on the wrist. I would start where you're at and loosen the band one notch, and try that for a day. If that doesn't help, try loosening one more notch. Obviously the tracker shouldn't be so loose that it flops around.

My other thoughts are:

• Is this new, and you have had good sleep data at some point in the past?
• Have you set a bedtime that is close to your normal routine bedtime (sleep schedule)?
• Is there anything about the way you sleep that might result in you moving your arm a lot, during sleep?
• What does your heart rate look like during that initial period, as compared to your resting heart rate, when Fitbit says you're not asleep?

[sjasone]

Thanks for the reply.  I did wearing it a little looser previously and that didn't seem to help.  Found some guidance that said wear it a little tighter.    I will try wearing it looser as well as changing back to normal sensitivity.  I'll start with just changing sensitivity back to normal.

To answer your questions:

1) I've only had it for just over a week and all it has recorded is about 25%-50% of my time asleep.  No good data.

2) I have not set a bedtime yet.

3) I sleep on my left side side.  I don't think I move a lot.  I do tend to wake up at least once within the first hour or so after first falling asleep.

4) My heart rate stays at about 55 to 60ish after going to sleep, which is a had lower than my current reported resting rate of 62.

[charleskn]

I would try

• Restarting your Charge 5: How do I restart my Fitbit device?
• Checking for Charge 5 firmware updates: How do I update my Fitbit device?
• Make sure you have the latest Fitbit app version

As an experiment, to test the accelerometer, I would setup your fitbit to automatically detect a walk or run activity, and see if it does that as expected. See: How do I track my activity with my Fitbit device?