Published on in Vol 22 , No 2 (2020) :February

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/14735, first published .
Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker

Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker

Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker

Rebecca Robbins 1, 2 * , PhD ;   Mahmoud Affouf 3 * , PhD ;   Azizi Seixas 4 , PhD ;   Louis Beaugris 3 * , PhD ;   George Avirappattu 3 * , PhD ;   Girardin Jean-Louis 4 , PhD

1 Division of Sleep and Circadian Disorders , Harvard Medical School , Boston , MA , US

2 Brigham and Women's Hospital , Boston , MA , US

3 Mathematical Sciences , Kean University , Union , NJ , US

4 Center for Healthful Behavior Change , Department of Population Health , NYU School of Medicine , New York , NY , US

*these authors contributed equally

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