Skip to main content
. 2021 Apr 26;16(4):e0250793. doi: 10.1371/journal.pone.0250793

Fig 2. Sleep timing (diary data) on work, free and all days in the archive group (grey diamonds; N = 452) and the 2020 group (red circles; N = 80).

Fig 2

[A]. Midsleep on work days (MSW) and on free days (MSFsc, sleep corrected). [B]. Frequency distributions of work days as a fraction of all days in the archive group (grey shaded bars) and the 2020 group (red open bars). The 0 bin denotes no work days, and the 1.0 bin denotes no free days. [C]. Sleep onset (SO), midsleep (MS, not sleep corrected) and sleep end (SE) averages for individual subjects across all days (bars denote group means ± standard deviation). ANOVA with Sidak multiple comparisons tests. ****p ≤ .0002, *** p = .001.