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Clock time when the participant is in bed or lights are out from type I polysomnography (full-night)
stloutp under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, this variable would be called the start of time in bed (TIB).
Bed partner or roommate
bthbts_0100 under Lifestyle and Behavioral Health in STAGES variables
Do you have a bed partner or roommate?
Self-reported in-bed time on week nights, school nights, work nights or days, current shift
sched_0900 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep?
Self-reported in-bed time on week nights, school nights, work nights or days, current shift - varies
sched_0901 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep? It varies.
Self-reported out-bed time on week nights, school nights, work nights or days, current shift
sched_1000 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping?
Self-reported out-bed time on week nights, school nights, work nights or days, current shift - varies
sched_1001 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping? It varies.
Self-reported in-bed time on week nights, school nights, work nights or days, next shift
sched_1300 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep?
Self-reported in-bed time on week nights, school nights, work nights or days, next shift - varies
sched_1301 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep? It varies.
Self-reported out-bed time on week nights, school nights, work nights or days, next shift
sched_1400 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping?
Self-reported out-bed time on week nights, school nights, work nights or days, next shift - varies
sched_1401 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping? It varies.
Self-reported in-bed time on week nights, school nights, work nights or days, 3rd shift
sched_1700 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep?
Self-reported in-bed time on week nights, school nights, work nights or days, 3rd shift - varies
sched_1701 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get into bed to sleep? It varies.
Self-reported in-bed time on week nights, school nights, work nights or days, 3rd shift
sched_1800 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping?
Self-reported in-bed time on week nights, school nights, work nights or days, 3rd shift - varies
sched_1801 under Sleep Questionnaires/Sleep Habits in STAGES variables
When working these hours, what time do you usually get out of bed after sleeping? It varies.
Self-reported in-bed time on weekend nights, non-school nights, non-work nights or days
sched_1900 under Sleep Questionnaires/Sleep Habits in STAGES variables
On days you are not working, what time do you usually get into bed to sleep?
Self-reported in-bed time on weekend nights, non-school nights, non-work nights or days - varies
sched_1901 under Sleep Questionnaires/Sleep Habits in STAGES variables
On days you are not working, what time do you usually get into bed to sleep? It varies.
Self-reported out-bed time on weekend nights, non-school nights, non-work nights or days
sched_2000 under Sleep Questionnaires/Sleep Habits in STAGES variables
On days you are not working, what time do you usually get out of bed after sleeping?
Self-reported out-bed time on weekend nights, non-school nights, non-work nights or days - varies
sched_2001 under Sleep Questionnaires/Sleep Habits in STAGES variables
On days you are not working, what time do you usually get out of bed after sleeping? It varies
Pittsburgh Sleep Quality Index: When usually gone to bed the past month
psqi_1 under Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI) in ANSWERS variables
Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771)External semantic reference: CDEOriginal text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, what time have you usually gone to bed at night? Search for all PSQI variables within this dataset
Pittsburgh Sleep Quality Index: Do you have a bed partner or roommate?
psqi_10 under Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI) in ANSWERS variables
Item related to Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771)External semantic reference: CDEOriginal text: Do you have a bed partner or roommate? Search for all PSQI variables within this dataset
Total In-bed Period: the interval between lights off/in-bed time and lights on/out-bed time from polysomnography
nsrr_ttlprdbd_f1 under Harmonized/Polysomnography/Sleep Architecture in HCHS variables
Harmonized by the NSRR team. Conventionally, this would be called time in bed (TIB) Source: :slpa30: at Visit 1
Total period of bed (i.e., time in bed) from polysomnography
nsrr_ttlprdbd_f1 under Harmonized/Polysomnography/Sleep Architecture in SOF variables
Harmonized by the NSRR team. Source: :timebedp: at Visit 8
Total period of bed (in-bed) from type II polysomnography
timebedp under Sleep Monitoring/Polysomnography/Sleep Architecture in SOF variables
Time from lights out to lights on
Sleep Efficiency: the ratio of total sleep duration (i.e., total sleep time) to in-bed period (i.e., time in bed) from polysomnography
nsrr_ttleffsp_f1 under Harmonized/Polysomnography/Sleep Architecture in SHHS variables
Harmonized by the NSRR team. Source: :slpeffp:
Total In-bed Period: the interval between lights off/in-bed time and lights on/out-bed time from polysomnography
nsrr_ttlprdbd_f1 under Harmonized/Polysomnography/Sleep Architecture in SHHS variables
Harmonized by the NSRR team. Conventionally, this would be called time in bed (TIB) Source: :timebedp:
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