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Number and percentage of wake and N1, N2, and N3 sleep epochs
| EEG | Wake | N1 Sleep | N2 Sleep | N3 Sleep |
|---|---|---|---|---|
| Scalp | 106 (29.4) | 54 (15.0) | 153 (42.5) | 47 (13.1) |
| Ear | 92 (25.6) | 57 (15.8) | 181 (50.3) | 30 (8.3) |
Data are presented as No. (%). Total number of epochs = 360 (n = 4).
