We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.


sawa55 under Sleep Monitoring/Actigraphy in HCHS variables
Sleep duration (i.e. total sleep time) is the interval between sleep onset and sleep offset time while asleep.
stdsleeptime_act_night under Sleep Monitoring/Actigraphy in SHINE variables
Variable sourced from actigraphy data