Prevalence and characterization of sleep quality and insomnia in security guards working on the day and night shift in Delhi-NCR.

The study concluded that night-shift working security guards had poorer sleep quality and a higher prevalence of insomnia compared to their day-shift counterparts. These differences are highly significant, highlighting the potential adverse effects of night shift work on sleep health, urging the need for interventions to improve sleep quality and manage insomnia among night shift workers.