Previous studies on seasonal effects on sleep have yielded unclear results due to methodological differences and limitations in data size and quality. This study measured the sleep habits of 216 individuals across the U.S. over four seasons using objective, continuous, and unobtrusive measures. Results revealed small but statistically significant effects of seasons and weather on sleep patterns, with the strongest effects observed in wake time and sleep duration during spring (earlier wake times and decreased sleep duration). Sleep duration also decreased modestly as day lengths increased. Bedtimes and wake times were slightly later as outdoor temperature increased.
Publisher
npj Digital Medicine
Published On
Apr 28, 2021
Authors
Stephen M. Mattingly, Ted Grover, Gonzalo J. Martinez, Talayeh Aledavood, Pablo Robles-Granda, Kari Nies, Aaron Striegel, Gloria Mark
Tags
sleep patterns
seasonal effects
weather impact
wake time
sleep duration
day length
temperature
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