Current Knowledge/Study Rationale: Insomnia and nightmares confer increased risk for suicidal ideation in young people. However, the psychological processes driving this association are not yet known. This study tested a hypothesized multistep mediational pathway, derived from the Integrated Motivational Volitional Model of Suicidal Behaviour, to further understanding regarding the role of two robust suicide-related constructs, defeat and entrapment, as mediators within the sleep-suicidal ideation relationship in adolescents.
Study Impact: Taken together, analyses supported the hypothesized role of defeat and entrapment, as mediators, driving the psychological pathway from sleep disturbance to suicidal ideation in young people. These findings suggest that suicide risk assessment, prevention, and intervention efforts aimed at young people should consider insomnia, nightmares, defeat, and entrapment as important modifiable clinical targets.