What is sleep mode on fitbit?

Sleep mode on Fitbit is a feature that allows users to track their sleep and identify patterns of restlessness or sleep duration. When sleep mode is turned on, the Fitbit device will monitor various metrics such as heart rate, movement, and breathing patterns to determine the quality and duration of sleep. Sleep data is then displayed in the Fitbit app where users can review graphs and charts that illustrate their sleeping patterns. Fitbit also offers a feature called Sleep Score that gives users an overall numerical score that represents the quality of their sleep. To turn on sleep mode users can either manually select the option on the device or set a specific time for the device to automatically enter sleep mode. Users can also customize sleep mode settings to automatically track naps or set a silent alarm to wake up gently in the morning.