In the past was thought that pregnancy prevent and protect against depression, While studies suggest that not only the depression in the third trimester has high prevalence, But sleep disorder is considered a normal part of pregnancy and not care about it, Can affect maternal mental, physical, and result in pregnancy, especially led to mood disorders. as well as, efforts for reducing maternal mortality and morbidity in pregnancy to extend prenatal care and delivery have led to maternal and childhood health outcomes, Due to the limited research in this area, Since the priority giving of health services to the health of pregnant women is one of the Millennium Development Goals, Early detection and follow her depression during pregnancy is important. It felt a need for research in the pregnant women with sleep disorder. Thus, the researchers were decided to study in this field .In the hope of being able to increase the protection of women duringpregnancy. This could be a step toward the realization of their motto "Healthy mother and healthy child".