Table 1.

Participants’ demographic characteristics (n = 380).

Variable	Frequency (%)
Sex	Male 245 (64.5) Female 135 (35.5)
Nationality	Saudi 359 (94.5) Non-Saudi 21 (5.5)
Marital status	Married 4 (1.1) Unmarried 376 (98.9)
Working status	Part-time worker 38 (10) Not working 342 (90)
Undergraduate specialty	Health and/or medical school 172 (45.3) Non-health school 208 (54.7)
Name of the university	University of Jeddah (UOJ) 146 (38.4) King Abdulaziz university (KAAU) 86 (22.6) Umm AlQura 56 (14.7) King Saud National Guard 23 (6.1) Private 56 (14.7) Other governmental university 13 (3.4)
Reported regular daily exogenous melatonin use in the management of sleep disorders	Yes 196 (51.6) No 184 (48.4)
Reported daily hypnotic and/or sedative use in the management of sleep disorders	Yes 68 (17.9) No 312 (82.1)
Patter of use among daily users (timing)	As needed 138 (66.3%) Once per day 42 (21.6%) Twice per day 23 (11.1%) Three times per day 2 (1%)