Charge 4 not recording the last hour or two of my sleep.

[vedinke1]

Has anyone noticed a change in their sleep monitoring? For the last couple of weeks I’ve noticed that my Fitbit charge 4 isn’t recording my last hour or two of sleep. Sleep monitoring for me was the best feature of Fitbit but if it’s undercounting my sleep by hours, it’s basically useless. Is this undercounting on purpose so that a person will pay for premium? My Charge 4 still seems strong and I charge it to capacity regularly so don’t think that’s an issue.

Moderator edit: clarified subject.

[Jen71a]

Mine has stopped syncing my sleep completely. I pay for premium too!!! Not happy

[ManuFitbit]

Welcome to the community forums @vedinke1.

Thank you for sharing the inquiry regarding this situation with your Charge 5. 

I suggest resetting the HR on your Charge 4 by following the steps below:

• Switch the Heart Rate settings from On to Off and manually sync your watch. To switch the heart rate settings on your watch, from the main screen of your watch, swipe left until you see "Settings", next swipe up until you see "Heart Rate" and switch it to Off.
• Once it's done, manually sync your Charge 4. To do so, open the Fitbit app, tap on the Account icon, tap on your Charge 4's image and tap on "Sync Now" 
• Next, switch it from Off to On and manually sync your watch once again. 
• Once it's done, restart your watch once again. 
• Next, confirm that your tracker is snug on your wrist (the lights shouldn't be visible) We also recommend when you're not exercising, wear the tracker just above the wrist bone.

Additionally, I recommend considering the following in order to get sleep stages:

• If you slept in a position that prevented your device from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your device higher on your wrist (about 2-3 finger widths above your wrist bone). The band should feel secure but not too tight.
• If you used the Begin Sleep Now option in the Fitbit app (instead of simply wearing your device to bed). For more information on automatic sleep tracking, see How do I track my sleep with my Fitbit device?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

[Sara_mac]

This does not work for my charge 4. Im also missing sleep data. For the las week if go back through previous days sleep info displays and then dissapears. 😞 

[ManuFitbit]

Hi @Sara_mac. Good to see you around for the first time. 

Thank you for taking the time to share the information regarding this difficulty with your Charge 4. 

Can you please confirm that you have followed the troubleshooting steps regarding Heart rate ?

• Switch the Heart Rate settings from On to Off and manually sync your watch. To switch the heart rate settings on your watch, from the main screen of your watch, swipe left until you see "Settings", next swipe up until you see "Heart Rate" and switch it to Off.
• Once it's done, manually sync your Charge 4. To do so, open the Fitbit app, tap on the Account icon, tap on your Charge 4's image and tap on "Sync Now" 
• Next, switch it from Off to On and manually sync your watch once again. 
• Once it's done, restart your watch once again. 
• Next, confirm that your tracker is snug on your wrist (the lights shouldn't be visible) We also recommend when you're not exercising, wear the tracker just above the wrist bone.

If the difficulty has to do with the Fitbit app, try to perform the following troubleshooting steps:

• Log out from the Fitbit app.
• Force quit the Fitbit app and reboot your phone.
• Open the Fitbit app and log back into your account.
• Check if the issue is still happening.