Background: Adverse childhood experiences (ACEs) can lead to worse sleep quality (SQ) and have an impact on relationships. This study examines the role of sleep on the link between ACEs and romantic relationship quality (RRQ). Additionally, the association between ACEs and romantic relationship patterns and nightmares is investigated. Methods: In a self-assessment questionnaire survey, ACEs as well as romantic relationship (quality, history, orientation) and sleep patterns (quality, nightmares) were assessed in 300 women aged 18–52 years using the Adverse Childhood Experiences Questionnaire, Pittsburgh Sleep Quality Index, Nightmare Effects Questionnaire, Relationship Orientation Questionnaire, and the Relationship Assessment Scale. Demographic data and number of previous romantic relationships were also assessed. Results: SQ was found to be a significant mediator of the relationship between childhood maltreatment (CM) and RRQ. The prediction of RRQ through ACE becomes smaller and non-significant when impaired SQ is accounted for. Neither a general history of ACEs nor single types of ACEs predict short-term romantic relationship orientation (preference for short- over long-term romantic relationships). However, overall CM, history of sexual abuse, separation of parents, violence against the mother, substance abuse of a household member, and mental disorder of a household member significantly predict more romantic relationships. Heightened nightmare frequency is predicted by emotional neglect and substance abuse of a household member. More daytime effects of nightmares were also predicted by overall CM. Conclusion: As sleep was found to moderate the link between ACEs and RRQ, therapeutic treatments for CM individuals should target sleep improvement as an important goal. This might not only improve SQ, but also quality of life or romantic relationships. © 2018, Springer Medizin Verlag GmbH, ein Teil von Springer Nature.
