Luxe sleep tracking is not correct.

[Slvrpdle]

I have a Fitbit Luxe and Fitbit Premium.  The sleep tracking function always seems to miss the time I go to bed and tracks something and hour or more later, missing some of my sleep.  I used to be able to update the time and it would re-calculate my sleep / sleep score.  Now it doesn't update the sleep zones or score.  It just adds time to the total which is not correct.  Is this a problem with the software?  The device?

Moderator edit: clarified subject.

[ManuFitbit]

Welcome back to the community @Slvrpdle. 

Thank you for sharing with me the information about this difficulty with your Luxe.

I'd recommend trying the following steps to make sure your heart rate is working as heart rate reading is key to get your sleep data accurately:

• 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 Luxe. To do so, open the Fitbit app, tap on the upper left corner icon, tap on your Luxe'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.

Also, for more detailed information, see What factors can affect my heart-rate reading on my Fitbit device? 

In addition, try to troubleshoot the Fitbit app:

• Log out from the Fitbit app.
• Offload the Fitbit app and reboot your phone.
• Open the Fitbit app and log back into your account.
• Check if the hours of activity are available now.