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IntroductionShort or long sleep duration is a risk factor for cardiovascular disease, but the association between sleep duration and cardiovascular health is unclear. Our objective was to quantify the association between sleep duration and ideal cardiovascular health (CVH) in US adults. We hypothesized that very short (<6 h) and very long ( 659 h) sleep duration were associated with poorer CVH compared with sleep lasting 7 to <8 hours.MethodsWe conducted a cross-sectional evaluation of the nationally representative National Health and Nutrition Examination Survey in 2 cycles (2013\u20132014 and 2015\u20132016). Participants were 7,784 cardiovascular disease\u2013free US adults aged 20 to 75. Self-reported sleep duration was categorized as <6 hours, 6 to <7 hours, 7 to <8 hours, 8 to <9 hours, and 659 hours. The American Heart Association\u2019s ideal CVH metrics were used to determine the number of ideal CVH components, dichotomized as ideal (5\u20137 components) or not ideal (0\u20134 components). Survey-weighted logistic and linear regression models were used to determine the association between sleep duration and ideal CVH.ResultsThe weighted prevalences of those who slept 7 to <8 hours were 30.4%, very short sleep duration (<6 h), 9.0%, and very long duration ( 659 h), 13.5%. Only 21.3% of the population had ideal CVH. Compared with 7 to