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The aim of this study was to investigate the direct relationship of sleep schedule and sleep quality variables between healthy preschool children and their parents, focusing on the influence of the difference in bedtime between each other.
Forty-seven Japanese 5-year-old children and their primary parent were studied. The children wore an actigraph for one week. Although sleep patterns of children were generally independent of their parents, late sleep end time and bedtime of children were associated with parents' late sleep end time on weekends. Sleep behaviours of parents can influence those of their children.
For parents and children who share a bedroom, the timing of bedtime rather than co-sleeping may be a key factor in modulating sleep patterns. Trying to get children asleep and subsequently falling asleep at a similar time may disturb parents' sleep quality, which may subsequently affect that of their children.
For Japanese parents and children who share a bedroom, the timing of bedtime rather than co-sleeping appeared to be an important determining factor of sleep quality. Falling asleep at a similar time as their children may disturb parents x; sleep quality, which may subsequently influence that of their children.
