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Relative percent of each sleep stage by self-reported depth (A) or restfulness (B). Percent of time in bed after sleep onset spent in N1 (black), N2 (red), N3 (blue), REM (green), and wake (magenta) is shown. As the self-reported quality of sleep improves, progressively greater proportions of the night are spent in N2 with concomitant reductions in wake. No consistent changes are observed in N1, N3, or REM. Data represent the total number of epochs for each group.
