The Differences of Sleep Quality between Nurses with Two-shifts of Work and Nurses with Three-shifts of Work

Objectives: Humans generally have two times, which are daytime for activity and night for rest (circadian rhythm). Shift system of working can cause a lack of sleep or disruption of a person's sleep cycle, especially those who have a night shift. The shift of working can cause sleep deprivation of the nurses. This study aim was to identify the differences in sleep quality between nurses with two-shifts of work and nurses with three-shifts of work. Method: This study conducted on June-July 2019 in one private hospital in Jakarta, with a cross-sectional approach. This study used quantitative method. The sample of this study was 90 nurses (two-shifts: n=35; three-shifts: n= 55). Pittsburgh Sleep Quality Index was used as the instrument that has passed for Validity and Reliability (Chronbach alpha=0.820). Univariate and Mann-Whitney U were used to analyze the data. Results: This study found that most of the respondents were women (83,3%), range of ages 26-65 (51,11%), and nurses with two-shifts have poor sleep quality as 15.56%, nurses with three-shifts have poor sleep quality as 46.67%. There are differences in sleep quality between nurses with two-shifts and nurses with three-shifts (p value= 0.002). Conclusion: The shift work system can cause poor sleep quality of the nurses, especially for the nurses with threeshifts. Future researches expected to explore the factors that affect the poor sleep quality of nurses.