Harmonized - Polysomnography - Sleep Architecture - MSP Variables - Sleep Data - National Sleep Research Resource - NSRR

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	Name	Label	Folder
	nsrr_effsp_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	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. Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB). Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage. Source variable: se	Harmonized/Polysomnography/Sleep Architecture
	nsrr_pctdursp_s3_f1 Percentage of total sleep duration (i.e., total sleep time, TST) in Stage 3/4 from type I polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in Stage 3/4 from type I polysomnography Harmonized by the NSRR team. Refer to the source for detailed definitions of respiratory events: tstdeep	Harmonized/Polysomnography/Sleep Architecture
	nsrr_pctdursp_sr_f1 Percentage of total sleep duration (i.e., total sleep time, TST) in REM sleep from type I polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in REM sleep from type I polysomnography Harmonized by the NSRR team. Refer to the source for detailed definitions of respiratory events: tstrem	Harmonized/Polysomnography/Sleep Architecture
	nsrr_ttldursp_f1 Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from polysomnography	Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from polysomnography Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). Harmonized by the NSRR team. Source: tst	Harmonized/Polysomnography/Sleep Architecture