You can use your Fitbit tracker to see how many hours you sleep and better understand the quality of your sleep. Once you are in bed and ready to fall asleep, tap your Flex rapidly for one to two seconds.
Your Flex will vibrate and display two slowly dimming lights to indicate that you have entered sleep mode. When your Flex is in sleep mode, goal progress will not be displayed if you double-tap. Instead, your Flex will alternate two blinking lights back-and-forth to indicate that you are currently in sleep mode.
When you wake up, tap your Flex rapidly for one to two seconds to exit sleep mode.
Once you exit sleep mode, your Flex will vibrate and flash all five LED indicator lights three times and then display a spinning light pattern. When your Flex syncs with your account, you will be able to view your sleep stats on the dashboard.
If you have a Charge HR, it will track sleep automatically. Simply wear your device to bed. When your tracker syncs with your account, you will be able to view your sleep stats on the dashboard.
For more information about sleep tracking with your Fitbit, visit Fitbit Sleep Tracking FAQ’s.