Table 2.
Sleep characteristics from polysomnography (Mean (SD)).
| Nap | Nap Overnight | Wake Overnight | p* | |
|---|---|---|---|---|
| TST (min) | 70.88 (24.37) | 522.68 (71.34) | 549.51 (74.76) | 0.006 |
| Sleep Latency (min) | 15.03 (10.04) | 44.70 (31.35) | 26.73 (21.00) | 0.017 |
| WASO (min) | 11.35 (16.32) | 37.08 (40.14) | 36.39 (28.22) | 0.550 |
| Sleep Efficiency (%) | 73.06 (17.78) | 86.54 (7.94) | 90.03 (6.41) | 0.033 |
| nREM1(%) | 9.39 (4.49) | 9.39 (2.51) | 8.42 (2.19) | 0.004 |
| nREM2 (%) | 36.85 (13.52) | 53.22 (4.78) | 50.31 (9.05) | 0.322 |
| SWS (%) | 51.20 (15.36) | 19.73 (4.74) | 23.89 (7.00) | 0.003 |
| REM (%) | 2.56 (4.51) | 17.67 (3.60) | 17.41 (3.96) | 0.624 |
| SWA C3 (μV2/Hz) | 312.07 (67.52) | 244.42 (76.96) | 243.39 (65.20) | 0.970 |
Note TST = total sleep time; WASO = wake after sleep onset; nREM = non-rapid eye movement sleep, SWS = slow wave sleep; REM = rapid eye movement, SWA = slow wave activity.
*p values correspond to paired samples t-tests comparing overnight bouts across conditions.