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. 2020 Mar 25;43(9):zsaa046. doi: 10.1093/sleep/zsaa046

Figure 2.

Figure 2.

Left pane: Interaction between AM depth and window filter for awakening frequency. The Window × AM interaction was significant (p = 0.002). Center pane: Interaction between AM depth and window filter for proportion of REM sleep. The Window × AM interaction was significant (p = 0.047). Right pane: Interaction between AM depth and window filter for N2 sleep. The Window × AM interaction was not statistically significant, p = 0.777. There was a significantly lower proportion of N2 sleep during High AM WTN periods than Low AM WTN periods (p = 0.011). All data shown are estimated marginal means from the mixed regression model, adjusted for covariates included in the model (Table 4). Error bars indicate 95% confidence intervals.