Insomnia check (ISI)
For each question, pick the answer that best describes your sleep over the last 2 weeks.
This check uses the Insomnia Severity Index (ISI) — 7 questions about sleep difficulties over the last two weeks.
Your answers stay on this device — nothing is sent or saved anywhere.
DocSana self-checks are for information only. They are screening tools, not diagnoses: only a licensed clinician can diagnose a mental health condition. Your answers are scored in your browser and are never sent to or stored by DocSana. We count visits to these pages with privacy-friendly analytics that use no cookies and never receive your answers or results. There is no advertising tracking on self-check pages. If you're in crisis, call or text 988, or call 911 if you're in immediate danger.
Common questions
What is the ISI?
The ISI — the Insomnia Severity Index — is a 7-question sleep test used in clinics worldwide. It measures insomnia severity over the last two weeks, scored 0 to 28.
Is the ISI a diagnosis?
No. It's a screening tool. Only a licensed clinician can diagnose insomnia disorder or other sleep conditions.
What's the best treatment for insomnia?
CBT-I — cognitive behavioral therapy for insomnia — is the first-line treatment and outperforms sleep medication over time. Many therapists and sleep clinics offer it.
How often can I retake it?
As often as you like. Your answers are never stored, so each check starts fresh.
Who made the ISI?
Dr. Charles M. Morin and colleagues. It's free to use.
The Insomnia Severity Index (ISI) was developed by Morin et al. Free to use.
Clinical review pending This page was written by the DocSana team and is awaiting review by a licensed clinician.