Your sleep duration is how long you slept each night, which is automatically measured by your wearable.
The average sleep duration is
Series 1
2015
Series 2
2016
Series 3
2017
Series 4
2018
Series 5
2019
Series 6
2020
SE
Series 7
2021
Series 8
2022
Ultra
Series 9
2023
Ultra 2
Series 10
2024
Breathing
Exercise
Heart
Sleep
