['Anecdotal evidence suggests that mood, sleep, and health quality change in women from premenopausal to menopausal period; however, data supporting these assumptions from non-Western countries are scarce. The aim of the present study was therefore to assess premenopausal and menopausal Iranian women with regard to mood, sleep, and general health.', 'One hundred and twenty Iranian women took part in the study. Sixty were in a premenopausal state (mean age (M): = 46.9 years) and 60 in a menopausal state (M = 53.8 years). They completed a series of self-rating questionnaires related to sleep, mood, and health quality.', 'Compared to premenopausal women, menopausal women reported more difficulties such as falling asleep, and less general physical activities and vitality. No statistically significant differences were found for sleep quality, sleep schedules, difficulties in social life, general mood state, or general physical and mental health. Menopausal women reported to be more irritable, and to have more energy.'] Are among a sample of Iranian premenopausal and menopausal women differences in mood , sleep and health quality small?