Fig. 1

Age-differences across 9-weeks by sleep category. Individual participant values of age-differences for each time point are depicted by sleep group. Top panel (Good Sleep) are those above the median on both total sleep time (TST) and the sleep regularity index (SRI). Middle panel (Mixed Sleep) are those above the median on either TST or SRI. Bottom panel (Poor Sleep) are those below the median on both TST and SRI. Double plotted raster plots are provided for exemplar sleep patterns in each sleep group, with numbers linking aging data to the raster plots. Gray indicates missing diary data. Because timing data was not available for naps and night awakenings, timing was randomly allocated during the respective sleep or wake period in raster plots