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Sleep Durations by Age and Chronotype
| Age (years) | Chronotype (n) | Sleep Previous Evening (M [SD]) |
|---|---|---|
| 11 | Morning (13) | 9.49 (.68) |
| Evening (7) | 10.64 (1.24) | |
| 12 | Morning (12) | 9.93 (1.30) |
| Evening (9) | 8.84 (1.19) | |
| 13 | Morning (8) | 8.77 (1.06) |
| Evening (11) | 7.53 (1.86) | |
| 14 | Morning (7) | 9.05 (1.20) |
