Introduction:

Nurses are forced to shiftwork due to the nature of the work. This shiftwork can reduce sleep time and affect the quality of work and their work ability. The aim of this study was to evaluate the effect of sleep quality on the work ability of nurses in Sari hospitals<span dir="RTL" style="line-height: 115%; font-family: " b="" nazanin";="" font-size:="" 12pt;="" mso-ansi-font-size:="" 11.0pt;="" mso-ascii-font-family:="" "times="" new="" roman";="" mso-hansi-font-family:="" roman";"="" lang="FA">.

Method:

This cross-sectional study was conducted in hospitals in Sari in 2017. Participants included 200 nurses selected by random selection. The Persian versions of Pittsburgh’s sleep quality questionnaires and Work Ability Index (WAI) were used to collect data. Descriptive statistics, Spearman correlation and linear regression tests were used for statistical tests.

Results:

The mean age of participants was 33.52 ± 7.22. The level of work ability equaled 37.55 ± 5.50 in the participants on the good level. The average sleep quality score was 8.79 ± 3.80. The findings showed that there is a significant and inverse correlation between sleep quality and work ability.

Conclusion:

This study confirmed that sleep quality has a high effect on nurses' work ability and function.