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Bedtime
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Time at which an individual started trying to fall asleep. This was pre-set based on sleep diary data and visual inspection of actigraphy data
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Rise time
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Time of final awakening, after which the individual did not attempt to fall back asleep. This was pre-set based on sleep diary data and visual inspection of actigraphy data
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Time in Bed
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The total number of minutes elapsed between bedtime and rise time
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Total Sleep Time (TST)
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The total number of minutes scored as sleep
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Sleep Efficiency (SE)
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Total sleep time divided by time in bed, expressed as a percentage
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Sleep Onset Latency (SOL)
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The time elapsed between bedtime and the start of the sleep period (the first epoch of the first section of 5 consecutive minutes scored as sleep)
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Wake After Sleep Onset (WASO)
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Time spent awake during time in bed after the start of the sleep period
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Total Sleep Time Variability
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Coefficient of variation (standard deviation/mean) for total sleep time within each participant
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Time in Bed Variability
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Coefficient of variation for time in bed within each participant
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Bedtime Variability
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Individual standard deviation for bedtime across the 10-day period
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Rise time Variability
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Individual standard deviation for rise time across the 10-day period
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