Table 3 Sleep Variables (mean ± s.d.).
Sleep Variables | Total (n = 50) | Boys (n = 32) | Girls (n = 18) |
|---|---|---|---|
Bedtime | 21:12 ± 1:04 | 21:06 ± 0:55 | 21:24 ± 0:51 |
Sleep onset time | 21:40 ± 1:07 | 21:35 ± 1:00 | 21:49 ± 0:51 |
Wake time | 7:05 ± 0:56 | 7:02 ± 0:49 | 7:11 ± 0:40 |
Sleep latency | 27.3 ± 21.3 | 28.5 ± 13.6 | 25.3 ± 10.8 |
Nighttime sleep duration | 9.4 ± 1.0 | 9.4 ± 0.7 | 9.3 ± 0.6 |
Nap duration | 1.9 ± 0.8 | 1.9 ± 0.5 | 1.9 ± 0.5 |
Total sleep duration | 11.3 ± 1.0 | 11.3 ± 0.6 | 11.2 ± 0.6 |
Nap end time | 15:13 ± 2:08 | 15:22 ± 1:18 | 14:55 ± 1:26 |
Sleep efficiency | 87.6 ± 9.3 | 87.4 ± 7.3 | 88.2 ± 8.0 |
WASO (wake after sleep onset) | 68.3 ± 51.6 | 70.1 ± 41.4 | 63.7 ± 42.3 |
