A cross-sectional analysis of 5,978 U.S. adults found that healthier sleep behaviors—defined as adequate sleep duration, absence of frequent insomnia, no snoring, and no excessive daytime sleepiness—were associated with lower odds of depression and suicidal ideation. Depression mediated about one-third of the relationship between sleep and suicidal ideation. Associations were consistent across subgroups, and results held in sensitivity analyses. Researchers noted limitations including the cross-sectional design, reliance on self-reported sleep data, and the use of a single questionnaire item to assess suicidal ideation.

Source: Frontiers in Psychiatry