Table 5.
Associations between sleep hygiene behaviours and sleep duration
|
Sleep duration variable (weighted means) (hh : mm) |
||||
|---|---|---|---|---|
| Nighttime sleep duration | Daytime sleep duration (naps) | Sleep duration over 24 h | ||
| Sleep hygiene behaviour | Mean (SD) | Median (interquartile range) | Mean (SD) | |
| Regular bedtime | Yes | 11:18 (0:33) | 0:01 (0:15) | 11:27 (0:33) |
| No | 10:52 (0:49)** | 0:06 (0:33)b | 11:13 (0:41)a | |
| Read at bedtime | Yes | 11:20 (0:37) | 0:00 (0:09) | 11:28 (0:37) |
| No | 10:58 (0:36)** | 0:04 (0:30)b | 11:18 (0:31)a | |
| Fell asleep in bed each night | Yes | 11:18 (0:36) | 0:00 (0:09) | 11:25 (0:37) |
| No | 10:53 (0:39)** | 0:25 (0:34)*** | 11:22 (0:28)a | |
a
Independent samples t-test.
b
Mann–Whitney U test.
**
p ≤ .01.
***
p ≤ .001.