Table 1.
Participant characteristics and sleep measures.
| Condition | All | Young | Old | |
|---|---|---|---|---|
| Sex (female/male) | 29/24 | 16/14 | 13/10 | |
| Age (median, range) | 26 (20–75) | 23 (20–29) | 68 (65–75) | |
| Total sleep time, minutes (mean, SD) | Full sleep | 412 (76) | 431 (78) | 389 (68) |
| Sleep deprivation | 173 (37) | 184 (37) | 158 (33) | |
| REM, % (mean, SD) | Full sleep | 19.5 (6.9) | 19.8 (5.6) | 19.2 (8.3) |
| Sleep deprivation | 15.4 (8.8) | 14.4 (6.9) | 16.0 (10.0) | |
| N1, % (mean, SD) | Full sleep | 18.8 (10.1) | 14.4 (6.6) | 28.6 (11.1) |
| Sleep deprivation | 15.6 (9.0) | 10.8 (5.8) | 20.6 (9.4) | |
| N2, % (mean, SD) | Full sleep | 44.1 (7.7) | 42.8 (7.7) | 45.8 (7.5) |
| Sleep deprivation | 40.7 (11.8) | 35.5 (9.6) | 45.4 (12.0) | |
| N3, % (mean, SD) | Full sleep | 17.5 (9.6) | 23.0 (6.8) | 10.4 (8.0) |
| Sleep deprivation | 28.3 (16.0) | 39.3 (9.5) | 18.1 (14.3) | |
| ESS (mean, SD) | 8.2 (3.8) | 7.4 (2.8) | 9.2 (4.6) | |
| ISI (mean, SD) | 9.9 (2.0) | 10.1 (2.2) | 9.0 (1.3) | |
| KSQ sleep quality index (mean, SD) | 5.3 (0.5) | 5.3 (0.5) | 5.2 (0.5) | |
| KSQ snoring symptom index (mean, SD) | 5.7 (0.4) | 5.6 (0.3) | 5.5 (0.5) |