@Marylou1946 A few questions then:
- Is your Versa syncing without issues? When was the last sync?
- Is your Versa tracking your heart rate properly? Please include some screenshots for the nights when sleep wasn't tracked.
- Do you have any bedtimes presets set up in your Fitbit mobile app. If yes, clear them. They're known to cause issues.
- Is your Versa charged? If the battery drops below critical level, heart rate monitoring and sync gets turned off and that in turn will turn off sleep tracking
- Do you wear your band tight enough?
- Have you tried toggling heart rate ON / OFF / ON (go to Settings on your Versa, scroll down to heart rate) with a reboot of the tracker in-between (press and hold the left and bottom right buttons until Fitbit logo flashes)
- What's your phone model and OS?
- What's your Versa's firmware version and Fitbit mobile app version?

Marrrmaduke | Canada
Charge HR, Blaze, Charge 2, Charge 3, Inspire HR, Versa Lite, Versa SE, Aria