Table 3.

Smartphone usage at bedtime\day Among KSUMC non-medical employees, Riyadh, 2016 (n=369)

Time spent using smartphone at bedtime	Number	Percent
<=15 min	102	27.6
16-30 min	117	31.7
31-45 min	68	18.4
46-60 min	37	9.8
>60 min	46	12.5