Insomnia Screen
Based on the Insomnia Severity Index (ISI) developed by Morin (1993). Seven questions covering sleep onset, maintenance, early awakening, sleep dissatisfaction, and daytime impairment. The ISI is the most widely used self-report measure for insomnia severity in clinical and research settings.
For the past 2 weeks, rate the severity of your sleep difficulties.
0 = None / Not at all · 1 = Mild / A little · 2 = Moderate / Somewhat · 3 = Severe / Much · 4 = Very Severe / Very much
1. Difficulty falling asleep
2. Difficulty staying asleep (waking up during the night)
3. Problems waking up too early
4. How satisfied or dissatisfied are you with your current sleep pattern?
5. How noticeable to others do you think your sleep problem is in terms of impairing your quality of life?
6. How worried or distressed are you about your current sleep problem?
7. To what extent do you consider your sleep problem to interfere with your daily functioning (e.g., concentration, memory, mood, daytime fatigue)?
About This Screener
This screener reproduces the Insomnia Severity Index (ISI) developed by Morin (1993) and validated by Bastien et al. (2001). Scores range from 0 to 28. The validated severity categories are: 0-7 (no clinically significant insomnia), 8-14 (subthreshold insomnia), 15-21 (moderate clinical insomnia), and 22-28 (severe clinical insomnia). A score of 11 or more is the recommended cutoff for detecting clinical insomnia in research settings.
The ISI has an internal consistency of 0.90 and is sensitive to change with treatment. The first-line evidence-based treatment for chronic insomnia is Cognitive Behavioral Therapy for Insomnia (CBT-I), which outperforms sleep medication in long-term outcomes.