Psychometric Properties of Two Brief Versions of Cognitive, Insomnia-Specific Measures: The Anxiety and Preoccupation About Sleep Questionnaire and the Sleep-Associated Monitoring Index.

The two brief versions, Anxiety and Preoccupation about Sleep Questionnaire-Brief version and Sleep-Associated Monitoring Index-Brief version, displayed acceptable psychometric properties. This implies that the two brief versions might be viable alternatives for use in clinical and research settings.