Related Variables

	nsrr_ttleffsp_f1	Sleep Efficiency: the ratio of total sleep duration (i.e., total sleep time) to in-bed period (i.e., time in bed) from polysomnography Harmonized by the NSRR team. Source: :slp_eff:	Harmonized/Polysomnography/Sleep Architecture
	slpprdp	Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). Total time from lights out to lights on that is scored as sleep (rounded to nearest minute)	Sleep Monitoring/Polysomnography/Sleep Architecture

Cleveland Children's Sleep and Health Study