Recent research has shown that sleep is associated with moral judgment. Most of these studies have focused on moral awareness and unethical behaviors but far fewer have examined the impact of sleep on moral utilitarianism. We report a set of six preregistered cross-sectional studies which explore the association between moral utilitarianism and sleep quantity and quality at both the acute and chronic levels. A total of 582 participants drawn from diverse populations (USA, UK and France) addressed various measures of sleep quantity, sleep quality, and moral utilitarianism. We report a meta-analysis which showed only a weak association between sleep and moral utilitarianism. Despite the heterogeneity in the samples and methods employed, equivalence tests ruled out the possibility that we missed medium to strong effect sizes. We discuss the implication of these findings in the light of the moral judgment literature.

最近的研究表明，睡眠与道德判断有关。大多数这些研究都集中在道德意识和不道德行为上，但很少有人研究睡眠对道德功利主义的影响。我们报告了一组六项预先注册的横断面研究，这些研究探讨了道德功利主义与急性和慢性水平的睡眠数量和质量之间的关联。来自不同人群（美国、英国和法国）的总共 582 名参与者讨论了睡眠数量、睡眠质量和道德功利主义的各种衡量标准。我们报告了一项荟萃分析，该分析显示睡眠与道德功利主义之间的关联很弱。尽管所采用的样本和方法存在异质性，但等效性检验排除了我们错过中强效应大小的可能性。