This study attempted to investigate the factors in sleep quality, sleep disorder, daytime sleepiness in male systolic heart failure patients. It was a cross-sectional study conducted with 100 male patients with systolic heart failure. The method of sampling method was convenience whereby data were collected by means of demographic data forms, epworth sleepiness scale, sleep disorder index and the Pittsburgh Sleep Quality Index. SPSS software was utilized to analyze the data using descriptive statistics oft-test, ANOYA and coefficient Pearson correlation. Findings indicated that 100% of heart failure patient had low sleep quality and 53% had low daytime sleepiness. Insomnia and sleep apnea were the most common sleep problems in heart failure patients. There was a statistically significant relationship between sleep quality with age (p=0.030), education (p=0.004), smoking (p=0.048), on the one hand, and sleep disorders with income (p=0.012), body mass index (p=0.028), education (p=0.019), smoking (p=0.050), chronic obstructive pulmonary disease (p=0.035), angiotensin converting enzyme inhibitors (P =0.009), and angiotensin receptor blockers (p=0.016), on the other hand. The results showed that men with systolic heart failure had low sleep quality and insomnia, sleep apnea and daytime sleepiness as their common problems. It was concluded that weight loss, smoking cessation, control and treatment of chronic respiratory diseases, control of side effects of drugs might decrease sleep problems in male heart failure patients.