wake - Search - Sleep Data - National Sleep Research Resource

Study scored sleep/wake rather than with full sleep staging if there is not sufficient quality on EEG lead. Studies scored as sleep wake have all sleep stages scored using a default of Stage 2 and no arousals are scored.

nsrr_flag_spsw under Harmonized/Polysomnography/Signal Quality in CCSHS variables

Harmonized by the NSRR team. Source: :slewake: at Visit 3

Sleep Maintenance Efficiency: the proportion of total sleep duration (i.e., total sleep time) in sleep period (i.e., interval between sleep onset and offset including wake) from polysomnography

nsrr_ttlmefsp_f1 under Harmonized/Polysomnography/Sleep Architecture in CCSHS variables

Harmonized by the NSRR team. Source: :slp_maint_eff:

REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake from type I polysomnography

remlaiip under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables

REM Sleep Latency: the interval between the first sleep epoch and REM sleep including wake from type I polysomnography

remlaip under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables

Wake After Sleep Onset: the total duration being awake between sleep onset and lights-on/out-bed time from type I polysomnography

waso under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables

How often need someone to wake you

yhelpgetup under Sleep Questionnaires/Hypersomnia in CCSHS variables

Self-reported weekday sleep time

wd_slpdur under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the difference between self-reported weekday wake time and self-reported weekday bed time.

Self-reported weekday sleep time

wd_slpdur_hr under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the difference between self-reported weekday wake time and self-reported weekday bed time.

Midpoint of time in bed from self report (Weekday)

wd_slpmid under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the midpoint between self-reported weekday wake time and self-reported weekday bed time.

Self-reported wake time (Weekday)

wd_waketime under Sleep Questionnaires/Sleep Habits in CCSHS variables

Self-reported weekend sleep time

we_slpdur under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the difference between self-reported weekend wake time and self-reported weekend bed time.

Self-reported weekend sleep time

we_slpdur_hr under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the difference between self-reported weekend wake time and self-reported weekend bed time.

Midpoint of time in bed from self report (Weekend)

we_slpmid under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as the midpoint between self-reported weekend wake time and self-reported weekend bed time.

Self-reported Wake Time (Weekend)

we_waketime under Sleep Questionnaires/Sleep Habits in CCSHS variables

Sleep time from self-reported bed and wake times in minutes (all days)

ysleeptime_min under Sleep Questionnaires/Sleep Habits in CCSHS variables

Calculated as a weighted average of self-reported sleep time from weekdays and from weekends (ysleeptime_min = 5/7 * wd_slpdur + 2/7*we_slpdur )

nsrr_flag_spsw under Harmonized/Polysomnography/Signal Quality in CHAT variables

Harmonized by the NSRR team. Source: :slewake:

REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake

nsrr_ttldursp_s1sr under Harmonized/Polysomnography/Sleep Architecture in CHAT variables

Harmonized by the NSRR team. Source: :remlaiip:

REM Sleep Latency: the interval between the first sleep epoch and REM sleep including wake

nsrr_ttlprdsp_s1sr under Harmonized/Polysomnography/Sleep Architecture in CHAT variables

Harmonized by the NSRR team. Source: :remlaip:

Wake After Sleep Onset: the total duration being awake between sleep onset and lights-on/out-bed time from polysomnography

nsrr_waso_f1 under Harmonized/Polysomnography/Sleep Architecture in CHAT variables

Harmonized by the NSRR team. Source: :waso:

Total duration of wake time during sleep period with oxygen saturation < 90% from type I polysomnography

sao90awk under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables

Total time oxygen saturation (SaO2) < 90% in awake

Total duration of wake time during sleep period with oxygen saturation > 92% from type I polysomnography

sao92awk under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables

Total time oxygen saturation (SaO2) > 92 in awake

Data lost - recording ended before waking

recbeaw under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

1=data Lost - recording ended before wake

Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

minremp under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables

Total time scored as rapid eye movement sleep (REM), rounded to nearest minute (use calculated variable - sleep wake studies screened out)

Total duration of sleep in stage 1 sleep from type I polysomnography

minstg1p under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables

Total time scored as stage 1, rounded to nearest minute (use calculated variable - sleep wake studies screened out)

Total duration of sleep in stage 2 sleep from type I polysomnography

minstg2p under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables

Total time scored as stage 2, rounded to nearest minute (use calculated variable - sleep wake studies screened out)