Fitbit is changing how its Sleep Score works, and the update is designed to show more than a single nightly number. For users of Pixel Watch and Fitbit devices, the companion app is moving toward a broader view of sleep quality that tracks what happened during the night, not just how long sleep lasted.
The revised system, already announced for public preview participants, aims to reflect the “full spectrum of sleep quality.” Instead of relying on a simplified summary, Fitbit says the new approach looks at deep sleep, sleep disturbances, and restlessness across the night so the final score better matches how the body actually rested.
More detail behind the score
Until now, Sleep Score has been one of the most visible health metrics in the Fitbit app, but the display has been relatively condensed. The update adds more context so users can understand why a score moved up or down, rather than seeing only the final result.
That shift is meant to make nightly sleep data easier to interpret. If a routine is affecting rest, the new breakdown can help reveal which part of the night is driving the change.
Five added metrics now shape the view
Along with total sleep duration, the app now includes five additional metrics that give a more complete picture of a night’s sleep. Those metrics are:
- Time to sound sleep
- Sound sleep
- Restlessness
- Interruptions
- Full awakenings
Among them, Full awakenings is newly introduced in the scoring system. Fitbit defines it as separate wake events that a person can remember and that last at least five minutes.
That matters because sleep quality is not always captured by the amount of time spent asleep. A person may log enough hours and still receive a lower score if the night included repeated waking or frequent movement.
Why scores may look different now
The revised model can produce a different Sleep Score even when a user feels the night looked the same as usual. Fitbit says the updated reading captures a more detailed picture, allowing the score to shift in line with individual sleep patterns.
The company’s goal is to make the result more accurate for each person’s own nightly rhythm. In practice, that means the app should weigh continuity and quality more heavily, not just the total number of hours in bed.
From tracking to practical guidance
Fitbit is also extending the value of the update for Fitbit Premium subscribers. Two features are highlighted: answers from the in-app AI coach and a tool called Targeted insights.
Targeted insights are meant to turn sleep data into behavior suggestions. If Time to Sound Sleep runs high, for example, the app may recommend putting the phone away 30 minutes before bedtime.
That approach pushes the feature beyond measurement. The idea is to help users connect a score with a specific habit that may influence rest, making the nightly data more actionable.
Fitbit also notes a caveat around the AI coach. The company says the coach can still show inaccurate details in sub-metrics of Sleep Score, and fixes are being worked on.
A note for users checking the watch
There is one more detail worth watching for. Fitbit says the score shown on a device may differ from the score shown in the app, and the app version is considered the most accurate.
The rollout is aimed at public preview users and is expected to arrive over the course of a few days. According to 9to5Google, users will see an in-app prompt once the new metric system becomes available.
Because the Fitbit app sits at the center of the experience for Pixel Watch owners and many Fitbit wearable users, the change could affect how daily health data is read and understood. For anyone tracking sleep as a sign of recovery, the new breakdown offers a clearer look at what really happened overnight.