Name	Label	Folder
avgbedtime_act_night Average start time of first rest interval over nighttime periods (hours from midnight)	Average start time of first rest interval over nighttime periods (hours from midnight) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avglongestsleep_act_day Average longest time spent asleep over daytime periods in minutes	Average longest time spent asleep over daytime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avglongestsleep_act_night Average longest time spent asleep over nighttime periods in minutes	Average longest time spent asleep over nighttime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgnwakeintervals_act_night Average number of wake intervals over nighttime periods	Average number of wake intervals over nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleepefficiency_act_24h Average proportion of rest interval spent asleep over 24-hour time windows	Average proportion of rest interval spent asleep over 24-hour time windows Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleepefficiency_act_day Average proportion of rest interval spent asleep over daytime periods	Average proportion of rest interval spent asleep over daytime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleepefficiency_act_night Average proportion of rest interval spent asleep over nighttime periods	Average proportion of rest interval spent asleep over nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleeptime_act_24h Average time spent asleep over 24-hour time windows in minutes	Average time spent asleep over 24-hour time windows in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleeptime_act_day Average time spent asleep over daytime periods in minutes	Average time spent asleep over daytime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgsleeptime_act_night Average time spent asleep over nighttime periods in minutes	Average time spent asleep over nighttime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgwaketime_act_night Average end time of last rest interval over nighttime periods (hours from midnight)	Average end time of last rest interval over nighttime periods (hours from midnight) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
avgwaso_act_night Average total wake time in the sleep periods across all rest intervals at nighttime periods	Average total wake time in the sleep periods across all rest intervals at nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
covsleeptime_act_24h Coefficient of variation of time spent asleep over 24-hour time windows	Coefficient of variation of time spent asleep over 24-hour time windows Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
covsleeptime_act_day Coefficient of variation of of time spent asleep over daytime periods	Coefficient of variation of of time spent asleep over daytime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
covsleeptime_act_night Coefficient of variation of time spent asleep over nighttime periods	Coefficient of variation of time spent asleep over nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
covwaso_act_night Coefficient of variation of total wake time in the sleep periods across all rest intervals at nighttime periods	Coefficient of variation of total wake time in the sleep periods across all rest intervals at nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
hasactigraphy Child has actigraphy data	Child has actigraphy data	Sleep Monitoring/Actigraphy
n24hdays_act Total number of 24-hour time window with both daytime and nighttime sleep periods	Total number of 24-hour time window with both daytime and nighttime sleep periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
nperiods_act_day Total number of daytime periods (8AM to 7PM within the same day)	Total number of daytime periods (8AM to 7PM within the same day) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
nperiods_act_night Total number of nighttime periods (7PM to 8AM the next day)	Total number of nighttime periods (7PM to 8AM the next day) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdbedtime_act_night Standard deviation of start time of first rest interval over nighttime periods (hours from midnight)	Standard deviation of start time of first rest interval over nighttime periods (hours from midnight) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdsleeptime_act_24h Standard deviation of time spent asleep over 24-hour time windows in minutes	Standard deviation of time spent asleep over 24-hour time windows in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdsleeptime_act_day Standard deviation of time spent asleep over daytime periods in minutes	Standard deviation of time spent asleep over daytime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdsleeptime_act_night Standard deviation of time spent asleep over nighttime periods in minutes	Standard deviation of time spent asleep over nighttime periods in minutes Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdwaketime_act_night Standard deviation of end time of last rest interval over nighttime periods (hours from midnight)	Standard deviation of end time of last rest interval over nighttime periods (hours from midnight) Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy
stdwaso_act_night Standard deviation of total wake time in the sleep periods across all rest intervals at nighttime periods	Standard deviation of total wake time in the sleep periods across all rest intervals at nighttime periods Variable sourced from actigraphy data	Sleep Monitoring/Actigraphy

Sleep Health in Infancy and Early Childhood