Fig. 7

Illustrative time series waterfall plot of selected PAM parameters used to classify sleep activity with a rule-based algorithm. Participant-specific thresholds (black dashed lines) were set for microphone and accelerometer levels and for the time-derivative of PM\(_{10}\). Red line segments show time periods that the model classified as “sleep” while the blue line segments indicate non-sleep activities. Manual activity logs are presented for comparison as a time-series and as a grey shaded area