Suicidal risk, insomnia symptoms, and interoceptive sensitivity: Network analysis in a university student population

Objective: This cross-sectional study examines the relationships between insomnia symptoms, suicidal risk, and interoceptive sensitivity in university students. Participants: A sample of 288 students from French universities was recruited. Methods: The Sleep Condition Indicator, the Suicide Behaviors Questionnaire-Revised, and the Multidimensional Assessment of Interoceptive Awareness were used to assess insomnia, suicidal risk, and interoception. Network analysis explored the connections between insomnia and suicidal risk, while mediation analysis examined the role of the interoceptive sensitivity dimensions. Results: 46.18% of participants had clinical insomnia, and 37.84% had elevated suicide risk. Nocturnal insomnia symptoms were more strongly associated with suicidal risk than daytime symptoms. Trusting body signals was found to partially mediate this association. Conclusions: These findings suggest that nocturnal insomnia may have a greater impact on suicide risk, with trust influencing this relationship. Addressing both insomnia and trust in interventions could help reduce suicide risk in university students.