Table 2.
Sleep duration questions
| Category | Study | Question Wording [Response Scale] | Event Definition | Context | Timeframe |
|---|---|---|---|---|---|
| 24-hour sleep | American Time Use Survey: Arts Activities | How long did you spend? -Sleeping (The length of time a respondent spent on an activity, during a specified 24 hour period) [HH:MM] | |||
| 24-hour sleep | Behavioral Risk Factor Surveillance System (BRFSS) | I would like to ask you a few questions about your sleep patterns. On average, how many hours of sleep do you get in a 24-hour period? Think about the time you actually spend sleeping or napping, not just the amount of sleep you think you should get. | Include naps | ||
| 24-hour sleep | Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa [HAALSI] | Over the past 4 weeks, how many hours do you think you actually slept each day? This may be different than the number of hours you spent in bed. | Exclude time in bed not sleeping | Past 4 weeks | |
| 24-hour sleep | National Health Interview Study (NHIS) | On average, how many hours of sleep do you get in a 24-hour period? [HH:MM] | |||
| 24-hour sleep | Midlife in the United States (MIDUS 1) National Study of Daily Experiences (NSDE) |
Since (this time/we spoke) yesterday, how much time did you spend sleeping? [HH:MM] | Since time spoke yesterday | ||
| 24-hour sleep | National Longitudinal Study of Adolescent to Adult Health (Add Health) Parent Study | How many hours of sleep do you typically get each day? [HH:MM] | |||
| 24-hour sleep | National Sleep Foundation: 2002 Adult Sleep Habits |
On workday or weekdays, how many hours, not including naps, do you usually sleep during one day?” [HH:MM] | Exclude naps | Workday or weekday | |
| 24-hour sleep | National Sleep Foundation: 2002 Adult Sleep Habits |
On weekends or non-workdays, how many hours, not including naps, do you usually sleep during one day?” [HH:MM] | Exclude naps | Weekend or non-workday | |
| 24-hour sleep | Nurse’s Health Study | On average, over a 24-hour period, do you sleep: [<5 hours; hrs; 6 hrs; 7 hrs; 8 hrs; 9 hrs; 10+ hours] | |||
| 24-hour sleep | Panel Study of Entrepreneurial Dynamics, PSED I | For the last typical day off, please indicate how much time (within a quarter of an hour) was devoted to each daily activity: Sleeping [HH:MM] | Day off | ||
| 24-hour sleep | Panel Study of Entrepreneurial Dynamics, PSED I | For the last typical work day, please indicate how much time (within a quarter of an hour) was devoted to each daily activity: Sleeping. [HH:MM] | Work day | ||
| 24-hour sleep | Sinai Community Health Survey | I would like to ask you about your sleep pattern. On average, how many hours of sleep do you get in a 24-hour period? [HH:MM] | |||
| 24-hour sleep | UK Biobank | About how many hours sleep do you get in every 24 hours? (please include naps) [HH:MM] | Include naps | ||
| 24-hour sleep | Cleveland Family Study (CFS) | How many total hours of actual sleep do you get in a 24-hour period (including naps)? [5 hours or less; 6 to 6.9 hours; 7 to 7.9 hours; 8 to 8.9 hours; 9 to 9.9 hours; 10 to 10.9 hours; 11+ hours] | Include naps | ||
| Nocturnal sleep | Apnea Positive Pressure Long-Term Efficacy Study (APPLES) | How many hours of sleep do you usually get at night on weekdays or workdays? [HH] | Weekday or workday | ||
| Nocturnal sleep | Apnea Positive Pressure Long-Term Efficacy Study (APPLES) | How many hours of sleep do you usually get at night on weekends or your non-work days? [HH] | Weekend or non-work day | ||
| Nocturnal sleep | Basic Nordic Sleep Questionnaire (BNSQ) | How many hours do you usually sleep per night? I sleep [HH] hours per night | |||
| Nocturnal sleep | Cancer Prevention Study I | How many hours of sleep do you usually get a night? [HH:MM] | |||
| Nocturnal sleep | Cancer Prevention Study II | On the average, how many hours do you sleep each night? [HH:MM] | |||
| Nocturnal sleep | Food Attitudes and Behaviors Survey | On average, how many hours of sleep do you usually get on a typical weeknight. [HH:MM] | Weeknight | ||
| Nocturnal sleep | Food Attitudes and Behaviors Survey | On average, how many hours of sleep do you usually get on a typical weekend. [HH:MM] | Weekend | ||
| Nocturnal sleep | Medical outcomes Study Sleep Scale (MOS-SS) | On average how many hours did you sleep each night during the past 4 weeks? [HH:MM] | Past 4 weeks | ||
| Nocturnal sleep | Mexican National Halfway Health and Nutrition Survey | In general, how many hours do you sleep daily during the night from Monday to Friday?” [HH] | Monday to Friday | ||
| Nocturnal sleep | MrOS Sleep Study (MrOS) | During the past month, how many hours of actual sleep did you get each night? (This may be different than the number of hours you spent in bed.)” [HH:MM] | Exclude non-sleep time | Past month | |
| Nocturnal sleep | National Health and Nutrition Examination Survey (NHANES) | How much sleep usually get at night on weekdays or workdays? [HH:MM] | Weekday or workday | ||
| Nocturnal sleep | National Sleep Foundation: 2003 Sleep and Aging |
On a weekday, how many hours, not including naps, do you usually sleep during one night?” [HH:MM] | Exclude naps | Weekday | |
| Nocturnal sleep | National Sleep Foundation: 2005 Adult Sleep Habits and Styles |
On days you do not work or on weekends, how many hours, not including naps, do you usually sleep during one night?” [HH:MM] | Exclude naps | Not work or weekend | |
| Nocturnal sleep | National Sleep Foundation: 2015 Sleep and Pain | On work nights or weeknights? [HH:MM] | Work or week nights | ||
| Nocturnal sleep | National Sleep Foundation: 2015 Sleep and Pain |
On non-work nights or weekend nights? [HH:MM] | Not work or weekend night | ||
| Nocturnal sleep | National Sleep Foundation: 2011 Sleep and Technology |
On school nights/worknights or weeknights, how many hours, not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | School nights/worknights or weeknights | |
| Nocturnal sleep | National Sleep Foundation: 2011 Sleep and Technology |
On non-school nights/nights you do not work or weekend nights, how many hours, not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | Non-school nights/nights you do not work or weekend nights | |
| Nocturnal sleep | Pittsburgh Sleep Quality Index (PSQI) | During the past month, how many hours of actual sleep did you get at night? (This may be different than the number of hours you spent in bed.) [HH:MM] | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | Sleep Disorders Questionnaire | How many hours of sleep do you get at night, not including time spent awake in bed? | Exclude time in bed not sleeping | ||
| Nocturnal sleep | Study of Osteoporotic Fracture | On most nights, how many hours do you sleep each night? [HH:MM, rounded to the nearest 30 minutes] | |||
| Nocturnal sleep | Study of Women’s Health Across the Nation (SWAN) | During the past month, how many hours of actual sleep did you get at night? (This may be different than the number of hours you spend in bed.) [HH:MM] | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | Survey of Midlife in Japan (MIDJA 2): Biomarker Project, 2013–2014 | During the past month, how many hours of actual sleep did you get at night (This may be different than the number of hours you spend in bed.) | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | National Sleep Foundation – 2011 Sleep and Technology |
How many hours not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | ||
| Nocturnal sleep | Women’s Health Initiative | About how many hours of sleep did you get on a typical night during the past 4 weeks? [5 or less; 6 hours; 7 hours; 8 hours; 9 hours; 10 or more hours] | Past 4 weeks | ||
| Major sleep episode | Framingham Heart Study | How much sleep do you usually get at night (or your main sleep period) on weekdays or work days? [HH:MM] | Work or weeknights | ||
| Major sleep episode | Multi-Ethnic Study of Atherosclerosis (MESA) | How much sleep do you usually get at night (or your main sleep period) on weekdays or workdays? [HH] | Weekdays or workdays | ||
| Major sleep episode | Jackson Heart Study | How much sleep do you usually get at night (or your main sleep period) on weekdays or workdays? [HH] | Work days | ||
| Not specified | Family Exchanges Study Wave 2, Philadelphia, Pennsylvania | How many hours a night do you typically sleep? [HH:MM] | |||
| Not specified | Sleep Heart Health Study (SHHS) | Hours of sleep ___ [HH:MM] | |||
| Not specified | SLEEP-50 | I sleep __ hours, mostly __ to ___. [HH] | |||
| 24-hour sleep | American Time Use Survey: Arts Activities | How long did you spend? -Sleeping (The length of time a respondent spent on an activity, during a specified 24 hour period) [HH:MM] | |||
| 24-hour sleep | Behavioral Risk Factor Surveillance System (BRFSS) | I would like to ask you a few questions about your sleep patterns. On average, how many hours of sleep do you get in a 24-hour period? Think about the time you actually spend sleeping or napping, not just the amount of sleep you think you should get. | Include naps | ||
| 24-hour sleep | Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa [HAALSI] | Over the past 4 weeks, how many hours do you think you actually slept each day? This may be different than the number of hours you spent in bed. | Exclude time in bed not sleeping | Past 4 weeks | |
| 24-hour sleep | National Health Interview Study (NHIS) | On average, how many hours of sleep do you get in a 24-hour period? [HH:MM] | |||
| 24-hour sleep | Midlife in the United States (MIDUS 1) National Study of Daily Experiences (NSDE) |
Since (this time/we spoke) yesterday, how much time did you spend sleeping? [HH:MM] | Since time spoke yesterday | ||
| 24-hour sleep | National Longitudinal Study of Adolescent to Adult Health (Add Health) Parent Study | How many hours of sleep do you typically get each day? [HH:MM] | |||
| 24-hour sleep | National Sleep Foundation: 2002 Adult Sleep Habits |
On workday or weekdays, how many hours, not including naps, do you usually sleep during one day?” [HH:MM] | Exclude naps | Workday or weekday | |
| 24-hour sleep | National Sleep Foundation: 2002 Adult Sleep Habits |
On weekends or non-workdays, how many hours, not including naps, do you usually sleep during one day?” [HH:MM] | Exclude naps | Weekend or non-workday | |
| 24-hour sleep | Nurse’s Health Study | On average, over a 24-hour period, do you sleep: [<5 hours; hrs; 6 hrs; 7 hrs; 8 hrs; 9 hrs; 10+ hours] | |||
| 24-hour sleep | Panel Study of Entrepreneurial Dynamics, PSED I | For the last typical day off, please indicate how much time (within a quarter of an hour) was devoted to each daily activity: Sleeping [HH:MM] | Day off | ||
| 24-hour sleep | Panel Study of Entrepreneurial Dynamics, PSED I | For the last typical work day, please indicate how much time (within a quarter of an hour) was devoted to each daily activity: Sleeping. [HH:MM] | Work day | ||
| 24-hour sleep | Sinai Community Health Survey | I would like to ask you about your sleep pattern. On average, how many hours of sleep do you get in a 24-hour period? [HH:MM] | |||
| 24-hour sleep | UK Biobank | About how many hours sleep do you get in every 24 hours? (please include naps) [HH:MM] | Include naps | ||
| 24-hour sleep | Cleveland Family Study (CFS) | How many total hours of actual sleep do you get in a 24-hour period (including naps)? [5 hours or less; 6 to 6.9 hours; 7 to 7.9 hours; 8 to 8.9 hours; 9 to 9.9 hours; 10 to 10.9 hours; 11+ hours] | Include naps | ||
| Nocturnal sleep | Apnea Positive Pressure Long-Term Efficacy Study (APPLES) | How many hours of sleep do you usually get at night on weekdays or workdays? [HH] | Weekday or workday | ||
| Nocturnal sleep | Apnea Positive Pressure Long-Term Efficacy Study (APPLES) | How many hours of sleep do you usually get at night on weekends or your non-work days? [HH] | Weekend or non-work day | ||
| Nocturnal sleep | Basic Nordic Sleep Questionnaire (BNSQ) | How many hours do you usually sleep per night? I sleep [HH] hours per night | |||
| Nocturnal sleep | Cancer Prevention Study I | How many hours of sleep do you usually get a night? [HH:MM] | |||
| Nocturnal sleep | Cancer Prevention Study II | On the average, how many hours do you sleep each night? [HH:MM] | |||
| Nocturnal sleep | Food Attitudes and Behaviors Survey | On average, how many hours of sleep do you usually get on a typical weeknight. [HH:MM] | Weeknight | ||
| Nocturnal sleep | Food Attitudes and Behaviors Survey | On average, how many hours of sleep do you usually get on a typical weekend. [HH:MM] | Weekend | ||
| Nocturnal sleep | Medical outcomes Study Sleep Scale (MOS-SS) | On average how many hours did you sleep each night during the past 4 weeks? [HH:MM] | Past 4 weeks | ||
| Nocturnal sleep | Mexican National Halfway Health and Nutrition Survey | In general, how many hours do you sleep daily during the night from Monday to Friday?” [HH] | Monday to Friday | ||
| Nocturnal sleep | MrOS Sleep Study (MrOS) | During the past month, how many hours of actual sleep did you get each night? (This may be different than the number of hours you spent in bed.)” [HH:MM] | Exclude non-sleep time | Past month | |
| Nocturnal sleep | National Health and Nutrition Examination Survey (NHANES) | How much sleep usually get at night on weekdays or workdays? [HH:MM] | Weekday or workday | ||
| Nocturnal sleep | National Sleep Foundation: 2003 Sleep and Aging |
On a weekday, how many hours, not including naps, do you usually sleep during one night?” [HH:MM] | Exclude naps | Weekday | |
| Nocturnal sleep | National Sleep Foundation: 2005 Adult Sleep Habits and Styles |
On days you do not work or on weekends, how many hours, not including naps, do you usually sleep during one night?” [HH:MM] | Exclude naps | Not work or weekend | |
| Nocturnal sleep | National Sleep Foundation: 2015 Sleep and Pain |
On work nights or weeknights? [HH:MM] | Work or week nights | ||
| Nocturnal sleep | National Sleep Foundation: 2015 Sleep and Pain |
On non-work nights or weekend nights? [HH:MM] | Not work or weekend night | ||
| Nocturnal sleep | National Sleep Foundation: 2011 Sleep and Technology |
On school nights/worknights or weeknights, how many hours, not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | School nights/worknights or weeknights | |
| Nocturnal sleep | National Sleep Foundation: 2011 Sleep and Technology |
On non-school nights/nights you do not work or weekend nights, how many hours, not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | Non-school nights/nights you do not work or weekend nights | |
| Nocturnal sleep | Pittsburgh Sleep Quality Index (PSQI) | During the past month, how many hours of actual sleep did you get at night? (This may be different than the number of hours you spent in bed.) [HH:MM] | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | Sleep Disorders Questionnaire | How many hours of sleep do you get at night, not including time spent awake in bed? | Exclude time in bed not sleeping | ||
| Nocturnal sleep | Study of Osteoporotic Fracture | On most nights, how many hours do you sleep each night? [HH:MM, rounded to the nearest 30 minutes] | |||
| Nocturnal sleep | Study of Women’s Health Across the Nation (SWAN) | During the past month, how many hours of actual sleep did you get at night? (This may be different than the number of hours you spend in bed.) [HH:MM] | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | Survey of Midlife in Japan (MIDJA 2): Biomarker Project, 2013–2014 | During the past month, how many hours of actual sleep did you get at night (This may be different than the number of hours you spend in bed.) | Exclude time in bed not sleeping | Past month | |
| Nocturnal sleep | National Sleep Foundation – 2011 Sleep and Technology |
How many hours not including naps, do you usually sleep during one night? [HH:MM] | Exclude naps | ||
| Nocturnal sleep | Women’s Health Initiative | About how many hours of sleep did you get on a typical night during the past 4 weeks? [5 or less; 6 hours; 7 hours; 8 hours; 9 hours; 10 or more hours] | Past 4 weeks | ||
| Major sleep episode | Framingham Heart Study | How much sleep do you usually get at night (or your main sleep period) on weekdays or work days? [HH:MM] | Work or weeknights | ||
| Major sleep episode | Multi-Ethnic Study of Atherosclerosis (MESA) | How much sleep do you usually get at night (or your main sleep period) on weekdays or workdays? [HH] | Weekdays or workdays | ||
| Major sleep episode | Jackson Heart Study | How much sleep do you usually get at night (or your main sleep period) on weekdays or workdays? [HH] | Work days | ||
| Not specified | Family Exchanges Study Wave 2, Philadelphia, Pennsylvania | How many hours a night do you typically sleep? [HH:MM] | |||
| Not specified | Sleep Heart Health Study (SHHS) | Hours of sleep ___ [HH:MM] | |||
| Not specified | SLEEP-50 | I sleep __ hours, mostly __ to ___. [HH] | |||
| 24-hour sleep | American Time Use Survey: Arts Activities | How long did you spend? -Sleeping (The length of time a respondent spent on an activity, during a specified 24 hour period) [HH:MM] | |||
| 24-hour sleep | Behavioral Risk Factor Surveillance System (BRFSS) | I would like to ask you a few questions about your sleep patterns. On average, how many hours of sleep do you get in a 24-hour period? Think about the time you actually spend sleeping or napping, not just the amount of sleep you think you should get. | Include naps |
Notes: A blank cell indicates that this component is not present in the question.