Figure 2 | Scientific Reports

Figure 2

From: Irregular sleep/wake patterns are associated with poorer academic performance and delayed circadian and sleep/wake timing

Figure 2

Sleep/wake and light/dark cycles differ between Regular and Irregular groups. Gray lines show individual data (n = 12 for each sleep/wake panel and n = 11 for each light/dark panel). Colored lines show group mean and standard deviation in one-hour bins, with data for each individual averaged across the whole study interval (i.e., multiple days). Dark gray bars indicate clock night (22:00 to 10:00). Left panels: Sleep/wake rhythm (percentage of time asleep) for (A) Regular and (B) Irregular sleepers. Right panels: Normalized light levels for (C) Regular and (D) Irregular sleepers.

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