Which wellness sources support sleep stages? Human API September 18, 2018 23:24 Updated Follow At this time, Human API supports sleep states (e.g. REM, regular sleep, etc) from the following wellness sources: Fitbit Garmin Withings See the following document for additional information. Related articles Which wellness sources does Human API support? How do different wellness sources capture energy consumption and expenditure (calories, exercise, and basal metabolic rate) What are the Activity types for wellness sources How to resolve missing steps from Apple Health How much historical wellness data is available? Comments 0 comments Please sign in to leave a comment.