Table 3.

Frequency of Different Sleep Hygiene Practices Among Qatar University Students (N= 1726*)

Questions	Never n (%)	Rarely n (%)	Sometimes n (%)	Frequently n (%)	Always n (%)
1) I take daytime naps lasting 2 or more hours.	403 (23.3)	503 (29.1)	386 (22.4)	258 (14.9)	176 (10.2)
2) Going to bed at various times from day to day.	120 (7.0)	362 (21.0)	546 (31.6)	429 (24.9)	269 (15.6)
3) Getting out of bed at various times from day to day.	153 (8.9)	476 (27.7)	544 (31.7)	362 (21.1)	182 (10.6)
4) I exercise to the point of sweating within 1 hour of going to bed.	1245 (72.1)	288 (16.7)	125 (7.2)	51 (3.0)	17 (1.0)
5) I stay in bed longer than I should (after waking up) two or three times a week.	243 (14.1)	422 (24.5)	470 (27.3)	353 (20.5)	236 (13.7)
6) I use tobacco or caffeine (for example: coffee or tea) within 4hrs of going to bed or after going to bed.	695 (40.4)	320 (18.6)	360 (20.9)	199 (11.6)	147 (8.5)
7) I do something that may wake me up before bedtime (for example: play video games, use the internet, or clean).	125 (7.3)	146 (8.5)	336 (19.5)	464 (27.0)	649 (37.7)
8) I go to bed feeling stressed, angry, upset, or nervous.	272 (15.8)	463 (26.9)	572 (33.2)	282 (16.4)	132 (7.7)
9) I use my bed for things other than sleeping or marital intimacy (for example: watch television, read, eat, or study).	283 (16.5)	252 (14.7)	388 (22.6)	343 (20.0)	453 (26.4)
10) I sleep on an uncomfortable bed (for example: poor mattress or pillow, too much or not enough blankets).	1162 (67.6)	294 (17.1)	169 (9.8)	60 (3.5)	34 (2.0)
11) I sleep in an uncomfortable bedroom (for example: too bright, too stuffy, too hot, too cold, or too noisy).	1103 (64.2)	319 (18.6)	181 (10.5)	74 (4.3)	42 (2.4)
12) I do important work before bedtime (for example: pay bills, schedule, or study).	261 (15.2)	325 (18.9)	528 (30.8)	364 (21.2)	239 (13.9)
13) I think, plan, or worry when I am in bed.	140 (8.1)	280 (16.3)	520 (30.2)	365 (21.2)	415 (24.1)

Note: *Number of participants who have answered at least one of the Sleep Hygiene Index questions.