One of organizational and interpersonal forms of severe abuses in today's corporate environments, organizational bullying. This familiar term in the behavioral, previously examined in the wider social environment, but cannot deny the importance of the environment today because organizations have received considerable attention. The purpose of this study is, The effect of organizational bullying with individual sleep quality with respect to a mediating role rumination among Hospital female nurses. Statistical population this study, Hospital female nurses Gorgan Sayyad Shirazi is that of a total of 220 female nurses who work in shifts: morning, afternoon and night working at the hospital, 141 were selected through Cochran formula the sample size. Research results showed that organizational bullying significant negative effect and on sleep duration and Sleep of Useful, and play a positive role in reducing the amount of sleep is female nurses (Sig =0.05). Finally, with the arrival of mediator rumination, organizational bullying effect on sleep quality in order to strengthen further negative moderated, And was determined, emotional rumination, exacerbate effect bullying organization to reduce sleep quality. But Work-related rumination, can greatly affect the organization's bullying little effect on sleep quality and sleep quality further.