A. Ensure that the sleep tracking feature is enabled in the app settings. Go to the app, navigate to 'Settings', and check if 'Sleep Tracking' is turned on. If it is, try recalibrating the sleep settings by manually entering your sleep and wake times for a few days to help the app learn your patterns.

B. Try resetting the app data. Go to the app settings, find the option to clear or reset data, and then re-enter your sleep preferences. This can help the app recalibrate its tracking.