ABOUT THIS QUIZ. The Insomnia Severity Index is a brief, validated screening tool used in research and clinical settings to gauge insomnia symptoms over the past two weeks. It is not a diagnosis. It helps you understand whether your sleep difficulties are likely mild, moderate, or severe and whether you should speak with a clinician.
HOW TO ANSWER. Think about the last two weeks. Select the option that best fits each statement.
Answer 7 questions. Get your score, category, and clear next steps.
This tool is for education. It does not diagnose insomnia. If your symptoms are moderate or severe, speak with your GP. If you have symptoms such as loud snoring, breathing pauses in sleep, leg discomfort at night, or very early morning awakenings with low mood, seek medical advice.