Good and Bad Sleep in Childhood: A Questionnaire Survey amongst School Children in Southern Italy

Table 2

Descriptive data on sleep habits and their comparison between good and bad sleepers.

Variables	Total sample Mean ± SD	Good sleepers Mean ± SD	Bad sleepers Mean ± SD	Mann-Whitney test (U)
Sleep onset time on schooldays	21:46 ± 01:23	21:43 ± 01:22	22:22 ± 01:24	5308,0*
Sleep onset time on weekends	22:53 ± 02:08	22:50 ± 01:30	23:35 ± 02:10	5322,0*
Rise time on schooldays	07:20 ± 00:31	07:21 ± 00:32	07:18 ± 00:24	6652,0
Rise time on weekends	09:25 ± 01:31	09:23 ± 01:28	09:47 ± 02:01	5838,50
Sleep duration on schooldays	09:34 ± 01:24	09:37 ± 01:23	08:55 ± 01:25	5330,0*
Sleep duration on weekends	10:32 ± 02:30	10:33 ± 02:29	10:12 ± 02:37	6715,5

* 𝑃<.05.