Geoffroy PA, et al. - Via obtaining data from face-to-face interviews conducted in the National Epidemiologic Survey on Alcohol and Related Conditions III, a nationally representative survey of US adults (N = 36,309), researchers explores the 12-month prevalence of mental disorders stratified by duration of sleep. There were 1,893 candidates who reported < 5h of sleep/night; 2,434 5 h/night; 7,621 6 h/night; 9,620 7 h/night; 11,186 8 h/night, and 3,245 ≥ 9 h/night. According to findings, U-shaped associations exist between the duration of sleep and mental disorders, calling for compliance with recommendations for an adequate duration of sleep in routine clinical care as well as actions for primary prevention in public health settings. Mental disorders prevalence was 55% for people with < 5 h/night and 47.81% for ≥ 9 h/night, vs 28.24% for the 7 h/night.