Italian adaptation of the Insomnia Catastrophising Scale (ICS): a tool to evaluate insomnia-specific catastrophic thinking
Several cognitive mechanisms have been hypothesized to be involved in insomnia disorder. Insomnia catastrophising thinking consists of overestimating the sleep disturbance and the related daytime impairment. The present study aimed to develop and assess the psychometric properties of the Italian adaptation of the Insomnia Catastrophising Scale (ICS) in a sample of 434 university students. The ICS is a self-report tool assessing catastrophic thoughts related to nighttime (ICS-N) and daytime symptoms of insomnia (ICS-D).