Fig. 1

Circular plots of the average sleep onset time (clock time), total sleep time (hours), and daily mood ratings (1-worst mood to 10-best mood) for each participant, averaged across all available months relative to the lunar illuminance cycle. The full moon is shown as a white circle and the new moon as a gray circle. Each participant’s age and sex are listed at the top, with medications they were taking during the study listed below. Missing sleep data for P4 reflects this participant skipping sleep one night