Effectiveness of a multi-component sleep-mood group intervention on improving insomnia in university students - a pilot randomized controlled trial.

Background: Sleep and mental health problems are very common in university students. The objective of this study was to assess the effectiveness of a multi-component sleep-mood intervention on improving sleep and mental health in university students with clinically significant insomnia symptoms, and to investigate possible mediators.

Methods: Thirty-five participants were randomized to the Sleep Mood Intervention: Live Effectively (SMILE) intervention (n = 23), or wait-list group (n = 12).