Tehran University of Medical Sciences Journal of Sleep Sciences 2476-2938 2 1-2 2018 02 13 28 33 EN Zohreh Yazdi Department of Community Medicine, School of Medicine AND Social Determinants of Health Research Center, Qazvin University of Medical Sciences, Qazvin, Iran Shabnam Jalilolghadr Department of Pediatrics, School of Medicine AND Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran Farid Tootoonchian Department of Pediatrics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran 2016 09 27 2017 07 30 Background and Objective: Sleep condition of nurses is important because it may affect providing healthcare services by them. The aim of this study was to determine the effect of a sleep hygiene course in nurses suffering from sleep disorders. Materials and Methods: This study was conducted among nurses with clinical insomnia. The nurses were randomly divided into intervention (50 nurses) and control (50 nurses) groups. For nurses in the intervention group, a 2-hour training session was held about sleep hygiene practices. 1 month after the intervention, the Persian versions of Insomnia Severity Index (ISI), Epworth sleepiness scale (ESS), and Pittsburg sleep quality index (PSQI) questionnaire were completed by all participants. Data were analyzed using t test. Results: All nurses were female, and their mean age was 29.8 ± 3.2 years. After the intervention, sleep latency was 15.5 ± 8.8 and 35.7 ± 19.7 minute in the intervention and control groups, respectively (P < 0.001). Total sleep duration per day was 462.6 ± 21.4 and 436.8 ± 18.8 minute in the intervention and control groups, respectively (P < 0.001). Total PSQI score (5.4 ± 0.9 vs. 7.0 ± 1.2, P = 0.003), ISI (9.3 ± 1.2 vs. 15.3 ± 2.7, P < 0.001), and ESS (7.6 ± 1.3 vs. 10.6 ± 1.6, P < 0.001) in the intervention group were significantly lower than control group. Conclusion: Sleep hygiene education consisted of a 2-hour session, and an educational brochure improved sleep problems in shift work nurses. https://jss.tums.ac.ir/index.php/jss/article/view/49