Amount and quality of sleep the night before alcohol and sleep deprivation
| Before alcohol Mean (SD) | Before sleep deprivation Mean (SD) | |
| Amount of sleep | 7.5 (2.4) | 7.2 (1.0) |
| Rated quality of sleep | 71.5 (25.0) | 58.7 (24.9) |
| Ratings of freshness at waking | 72.7 (19.8) | 65.2 (22.6) |