Fitbit recently changed Sleep Algorithm

[whollis]

After several weeks of nonsensical results, I got confirmation that they quietly changed the algorithm to add awake along with restless = “New Awake” results dramatically increase and my sleep scores are now in the 60s & 70s.  Jan - May was an average in the low 80s.  A few nights ago it had a solid block of 4 hours awake.  I think I’d know if I were awake that long.

If like me angry over the **ahem**ic change, send feedback and call tech support so they are bombarded with complaints.  Wonder if they consulted with sleep experts and scientists for validation but so far no comment from an escalation supervisor.

Engineering didn’t even communicate the change to tech support & the supervisory teams!  My supervisor agreed with me it makes no sense.  AI will validate being restless is different from awake so it’s now providing a fake awake calculation.

it should be rolled back to mid June before they sneakily made the change to destroy your sleep scores to consistently poor or fair.  

How do others feel?  Did you notice a major different/degradation?  Be vocal if you support me in demanding it return to the original algorithm.

[ronjo1]

How about better hint to what you switched to. I am 80 and have relied on accurate fitbit data for over 10 years to monitor, track, and improve my health. The change that Fitbit made rendered my Charge 6 data useless. 

[khknecht]

I still have the FitBit Charge 6. It seems they have tweaked the algorithm
again and my readings are within the normal range for me, at least for now.

[ronjo1]

Thanks for the ifo

[ronjo1]

Your post was 11/29/2025. How long ago do you believe they may have
corrected the issue? Thanks.

[Woodsy1955]

Mine is like yours, chunks of time I would remember being awake that much. My scores are not just 10 to 20 points less, they are 1/2 to nonexistent. Causing me much concern over my health. Next time they should warn us ahead of time. 

[barneygoogs]

This has happened to me! Use this primarily for sleep evaluation, however, with changes, sleep worse, and it changes for no reason. Also, used to be able to edit if saw it calculated an hour when i was awake but not anymore.  I have had your products for over 10 years and think I need to find a different product for this reason. Have read that many have the same problem. This morning I had score of 85, which felt right, but then changed to 78. Unreliable! If you have a resolution, let me know. have tried everything you suggested without avail. Once again, i hate to lose you, but very frustrated with this!!!