## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Division: CT** & \multicolumn{3}{c}{**Two MT**} & \multicolumn{3}{c}{**Two ET**} & \multicolumn{3}{c}{**Two-way**} & **Difference** \\ \hline
**Division: RT** & \(\boldsymbol{<}\boldsymbol{\mathcal{T}}\) & & \(\boldsymbol{\geq}\boldsymbol{7}\) & & \(\boldsymbol{\mathcal{G}}\) & & \(\boldsymbol{\geq}\boldsymbol{7}\) & **ANOVA** & \(\boldsymbol{\geq}\boldsymbol{7}\) & **TE-\(\boldsymbol{\mathcal{G}}\) MT** \\ \hline
**Sleep Time** & **Mean** & **SEM** & **Mean** & **SEM** & **Mean** & **SEM** & **Mean** & **SEM** & **F** & **Mean** & **SEM** \\ \hline Lectures (n): & (98) & (40) & (40) & (40) & (67) & & & & & \\ Weekday BT & 22.65 & 0.13 & 23.49 & 0.22 & 23.67 & 0.19 & 24.85 & 0.19 & 31.95 *** & 2.20 *** & 0.18 \\ Weekend BT & 23.13 & 0.14 & 24.12 & 0.25 & 24.80 & 0.22 & 1.35 & 0.22 & 29.83 *** & 2.22 *** & 0.20 \\ Difference BT & 0.49 & 0.13 & 0.63 & 0.22 & 1.13 & 0.19 & 0.50 & 0.19 & 2.80 * & 0.02 & 0.18 \\ Averaged BT & 22.78 & 0.12 & 23.67 & 0.21 & 24.00 & 0.18 & 24.99 & 0.18 & 37.91 *** & 2.21 *** & 0.17 \\ Weekday RT & 6.01 & 0.08 & 7.51 & 0.15 & 6.33 & 0.13 & 8.17 & 0.13 & 80.22 *** & 2.16 *** & 0.12 \\ Weekend RT & 7.98 & 0.18 & 8.85 & 0.31 & 9.49 & 0.27 & 10.14 & 0.27 & 17.66 *** & 2.16 *** & 0.25 \\ Difference RT & 1.97 & 0.18 & 1.34 & 0.31 & 3.17 & 0.27 & 1.97 & 0.27 & 7.40 * & 0.00 & 0.25 \\ Averaged RT & 6.57 & 0.09 & 7.90 & 0.15 & 7.23 & 0.13 & 8.73 & 0.13 & 67.86 *** & 2.16 *** & 0.12 \\ Weekday IIB & 7.36 & 0.12 & 8.03 & 0.20 & 6.66 & 0.18 & 7.32 & 0.18 & 8.77 *** & \(-\)0.04 & 0.16 \\ Weeked TIB & 8.85 & 0.18 & 8.73 & 0.32 & 8.69 & 0.28 & 8.79 & 0.28 & 0.08 & \(-\)0.06 & 0.26 \\ Difference TB & 1.48 & 0.21 & 0.71 & 0.36 & 2.04 & 0.32 & 1.47 & 0.31 & 2.54 & \(-\)0.02 & 0.29 \\ Averaged TIB & 7.79 & 0.10 & 8.23 & 0.18 & 7.24 & 0.16 & 7.74 & 0.16 & 5.97 *** & \(-\)0.05 & 0.14 \\ \hline Students (n): & (296) & (225) & (477) & (552) & & (52) & & & & \\ Weekday BT & 23.24 & 0.13 & 23.53 & 0.13 & 24.41 & 0.09 & 24.91 & 0.07 & 60.94 *** & 1.67 *** & 0.14 \\ Weeked BT & 23.87 & 0.13 & 24.17 & 0.13 & 1.12 & 0.10 & 1.91 & 0.08 & 82.19 * & 2.03 * & 0.15 \\ Difference BT & 0.63 & 0.12 & 0.64 & 0.12 & 0.71 & 0.09 & 1.00 & 0.07 & 4.03 * & 0.36 & 0.14 \\ Averaged BT & 23.42 & 0.11 & 23.72 & 0.11 & 24.61 & 0.09 & 1.20 & 0.07 & 82.78 *** & 1.78 *** & 0.13 \\ Weekday RT & 6.02 & 0.08 & 7.79 & 0.07 & 6.16 & 0.06 & 8.06 & 0.04 & 356.57 * & 2.04 * & 0.09 \\ Weeked RT & 8.80 & 0.13 & 9.51 & 0.13 & 10.18 & 0.10 & 11.05 & 0.08 & 86.40 *** & 2.25 * & 0.15 \\ Difference RT & 2.78 & 0.14 & 1.72 & 0.14 & 4.03 & 0.10 & 2.99 & 0.08 & 65.19 *** & 0.21 & 0.16 \\ Averaged RT & 6.81 & 0.07 & 8.28 & 0.07 & 7.31 & 0.05 & 8.92 & 0.04 & 302.29 * & 2.10 * & 0.08 \\ Weekday IIB & 6.78 & 0.13 & 8.26 & 0.13 & 5.75 & 0.10 & 7.08 & 0.08 & 84.81 *** & 0.30 & 0.15 \\ Weeked TIB & 8.93 & 0.14 & 9.35 & 0.14 & 9.07 & 0.10 & 9.07 & 0.08 & 1.68 & 0.15 & 0.16 \\ Difference TB & 2.15 & 0.16 & 1.09 & 0.16 & 3.32 & 0.12 & 2.00 & 0.09 & 48.51 * & \(-\)0.15 & 0.18 \\ Averaged TIB & 7.39 & 0.11 & 8.57 & 0.11 & 6.70 & 0.08 & 7.65 & 0.06 & 63.69 *** & 0.25 & 0.13 \\ \hline \hline \end{tabular} Notes. Results of two-way ANOVAs of data on either lecturers or students with independent factors “RT\(\boldsymbol{<}\boldsymbol{\mathcal{T}}\)” (self-reported weekday rise, either \(\boldsymbol{<}\boldsymbol{\mathcal{T}}\)\(\boldsymbol{\geq}\boldsymbol{\mathcal{T}}\) a.m., and self-chosen chronotype, CT, either morning or evening (MT or EI, respectively) and “Survey” (four online surveys, 1–4, see Tables 1 and S1); Sleep times from ANOVAs for subdivisions: MT and ET with weekday RT \(<\boldsymbol{\mathcal{T}}\) and \(\boldsymbol{\geq}\boldsymbol{\mathcal{T}}\) a.m.; Difference \(\boldsymbol{<}\boldsymbol{\mathcal{T}}\)\(\boldsymbol{\geq}\boldsymbol{\mathcal{T}}\) MT: Difference between two of four such subdivisions; BT: bedtime; IIB: time in bed; Averaged: weekly averaged sleep time. Difference BT (or RT PIB): Difference between weekend and weekday in BT (or in RT or in TIB); \(\boldsymbol{\mathcal{T}}\)\(\boldsymbol{>}\)\(\boldsymbol{<}\)\(\boldsymbol{0.05}\), \(\boldsymbol{\mathcal{T}}\)\(\boldsymbol{>}\)\(\boldsymbol{<}\)\(\boldsymbol{0.01}\), \(\boldsymbol{\quad***}\)\(\boldsymbol{\geq}\boldsymbol{\mathcal{T}}\) \(\boldsymbol{<}\)\(\boldsymbol{0.001}\) for F-ratio of independent factor “RT\(\boldsymbol{\mathcal{R}}\)CT” (F\({}_{3/229}\) and F\({}_{3/150}\) for lecturers and students, respectively), and for t from post hoc pairwise Bonferroni comparisons of two of four subdivisions. See also self-reported sleep times in Figure 4 and comparisons of ages for these times in Table 5.  
\end{table}