The Insomnia Severity Index (ISI) is a 7-item scale that quantifies perceived insomnia severity and the degree of distress associated with it.

How long does the ISI take?

About 3 minutes. It covers difficulty falling asleep, staying asleep, early awakening, and impact on daily life.

Who should take the ISI?

Adults with sleep difficulties. A score of 10 or higher suggests clinical insomnia; specialized treatment such as CBT-I may be indicated.

Measure how sleep disruption may be impacting recovery and focus.

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Your answers are private and secure. This test is for screening and educational purposes only and does not replace a professional diagnosis.

Measure how sleep disruption may be impacting recovery and focus.

0 of 7 completed0% complete

Your answers are private and secure. This test is for screening and educational purposes only and does not replace a professional diagnosis.