Sleeptracker-AI and MotionX activity data analyzed across multiple years show consistent, repeatable changes to both sleep patterns and physical activity levels over the Thanksgiving period. The patterns are stable year over year — Thanksgiving and the broader holiday season produce a reliable and measurable shift in how Americans sleep and move.

The New York Times has covered the physiological impact of Thanksgiving on the body, including its effects on sleep — context that aligns with what the Fullpower dataset captures at population scale.

https://www.nytimes.com/2007/11/20/health/nutrition/20well.html#sleep