Night-to-night sleep variability and all-cause and cardiovascular mortality: a prospective cohort study with a complementary in vitro circadian-disruption experiment
Irregular sleep–wake patterns may disrupt circadian rhythms, but the dose–response relationship between night-to-night sleep variability and mortality and the association of sleep onset variability with death remain unclear. Using 4–7 valid days of wrist accelerometer data, including ≥1 weekend day, from 7,6...