← Reference index

    Sleep pattern norms

    Average nightly sleep and weekend catch-up against age-band averages.

    The weighted weekly average assumes five work nights and two free nights. Catch-up is free-night sleep minus work-night sleep.

    Average nightly sleep (hours), adults

    Group10th25th50th75th90th
    All adults5.66.47.17.88.5

    Age-band average nightly sleep reported in survey data

    Age bandAverage hours
    18–297.3
    30–447.0
    45–596.9
    60+7.1

    Sources

    • Wittmann M et al. Social jetlag: misalignment of biological and social time. Chronobiology International, 2006.
    • Behavioral Risk Factor Surveillance System, self-reported sleep duration, adults.
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