Insomnia Severity Index
The Insomnia Severity Index is a brief self-report of insomnia severity. This page is for clinics. It is not a diagnosis of insomnia disorder and not a public test.
Overview
What is the ISI?
The ISI asks about insomnia complaints and associated distress. Clinics use it as a compact insomnia screen. It does not prescribe CBT-I, medication, or any other treatment.
Development and clinical use
Bastien, Vallieres and Morin published the ISI as a brief insomnia-severity instrument. It is widely used in sleep clinics and research. Confirm current official materials and any use terms before a live pathway.
- Mode
- Patient self-report
- Focus
- Insomnia severity
- Typical use
- Sleep-clinic intake
- Not a treatment plan
- No therapy prescribed
- Clinical role
- Insomnia context
- Diagnosis
- Not established by score
Administration
A focused client experience
ISI is completed as a focused self-report and stored for clinician review. This public page does not collect answers or return a score.
- One question at a time with visible progress
- Large keyboard-operable response choices
- Previous, next, and answer-review steps
- Clear confirmation that results go to the clinic
The illustration shows layout only. It does not reproduce ISI item wording.
Report showcase
Designed to make evidence easy to review
The downloadable synthetic example illustrates report layout using invented response patterns, without patient data or instrument questions.
- Named instrument, version, and provenance
- Item-level response pattern without source wording
- Methodology, references, and clinical boundary
- Responsible clinician review rather than automated conclusions
Clinician review required
Methodology
Understand the measure and its scoring conventions
Published scoring conventions may exist in official materials. This public page does not independently verify scoring, cutoffs, or a production scoring rule. Use the official form and scoring instructions for the version you intend to use.
References
- Original ISI paperBastien CH, Vallieres A, Morin CM. Validation of the Insomnia Severity Index. Sleep Medicine. 2001;2(4):297-307.
Questions
What clinics ask before they evaluate the ISI
These answers stay inside educational catalogue scope. They do not replace official manuals or clinician judgement.
Does ISI diagnose insomnia disorder?
No. It is a severity self-report. Diagnosis remains a clinician task using history and published diagnostic criteria.
Can I complete ISI here?
No. This page does not administer the measure or recommend treatment.
How is ISI used on Lirena?
As a sleep-intake self-report. Clinicians review the result with sleep history rather than treating a score as a diagnosis.
Is ISI the same as SCI or AIS?
They are related insomnia-oriented instruments with different item sets. Name the exact form your clinic intends to use.