Figure 1.

Regional differences in sleep patterns by age group. (A) Estimated marginal means and standard errors of sleep duration, bedtimes and wake times by country and age group for weekdays. Sleep duration recommendations from the National Sleep Foundation (14) are overlaid on sleep duration plots for comparison. (B) Proportion of users sleeping <5 h, 5–6 h, 6–7 h, 7–8 h and ≥8 h a night by country and age group on weekdays. (C) Estimated marginal means and standard errors of sleep duration, bedtimes and wake times by country and age group for weekends. Sleep duration recommendations from the National Sleep Foundation (14) are overlaid on sleep duration plots for comparison. (D) Proportion of users sleeping <5 h, 5–6 h, 6–7 h, 7–8 h and ≥8 h a night by country and age group on weekends. Large differences between Oceanian and East Asian users were consistently observed across all age groups on both weekdays and weekends.