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Descriptive statistics of sleep and school performance.
| Variables | |
|---|---|
| Sleepiness, M (SD) | 2.38 (1.13) |
| Sleep quality M (SD) | 9.34 (3.01) |
| TIB school days (hh:mm), M (SD) | 9:03 (00:40) |
| TIB non-school days (hh:mm), M (SD) | 10:25 (01:01) |
| Standardized school grades, M (SD) | 0.00 (1.00) |
| Self-reported school performance | |
| Insufficient | 4.3% |
| Average | 57.4% |
| Above average | 38.3% |
| Parent-reported school performance | |
| Insufficient | 4.3% |
| Average | 53.5% |
| Above average | 42.2% |
