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TOOLS · SCREENER
Sleep Condition Indicator: a two-minute insomnia check
The Sleep Condition Indicator (SCI) asks eight questions about your sleep over the past month and scores them from 0 to 32, where higher is better. A total of 16 or less suggests probable insomnia disorder.
- About 1 minute
- Free, no sign-up
Sleep Check-up
0 of 6 checks done
Finish this one to reach 1 of 6.
- NoSAS (not started)
- STOP-Bang (not started)
- Berlin (not started)
- Epworth (not started)
- Insomnia (not started)
- NOSE (not started)
Take the Sleep Condition Indicator, an 8-question insomnia screener scored 0–32. A score of 16 or less suggests probable insomnia disorder.
What your result looks like
A sample result. Yours appears here the moment you finish, with what it means and what to do next. Every possible result is listed beside it.
Above the insomnia cutoff
25/32
032
Your SCI score is above 16, outside the probable-insomnia range.
Your answers do not suggest an insomnia disorder right now. Retake in a month if things change.
- Check daytime sleepiness
- Learn about CPAP usage hours
0–16Suggests probable insomnia disorder
Your SCI score is 16 or less, which suggests probable insomnia.
17–32Above the insomnia cutoff
Your SCI score is above 16, outside the probable-insomnia range.
Milestone addedSleep done · 4 of 6 checks
Saved to your account. We'll remind you to retake in 30 days.
What this tool does
The SCI is for adults, including CPAP users, who want to know whether their sleep difficulty looks like insomnia disorder. It follows the DSM-5 criteria: trouble falling or staying asleep, how often, for how long, and the daytime effect.
It cannot diagnose insomnia, find its cause, or tell you whether sleep apnea is also present.
How the score works
| Topic | Points |
|---|---|
| Time to fall asleep | 0–4 |
| Time awake in the night | 0–4 |
| Nights per week with a problem | 0–4 |
| Overall sleep quality | 0–4 |
| Effect on mood, energy or relationships | 0–4 |
| Effect on concentration or productivity | 0–4 |
| How much poor sleep troubles you | 0–4 |
| How long it has lasted | 0–4 |
| Total (higher is better) | 0–32 |
16 or less is the published cutoff for probable insomnia disorder. Dividing by 3.2 gives a 0–10 version.
Reading your result
16 or less. Probable insomnia disorder. The lowest-scoring areas show where the difficulty sits; talk to a clinician.
17 or more. No insomnia disorder suggested. Watch any single low area.
Insomnia and CPAP: when both show up
Insomnia and obstructive sleep apnea occur together often enough to have a name: COMISA. Lying awake with a mask on is hard, so insomnia can make CPAP harder to keep up.
Cognitive behavioural therapy for insomnia (CBT-I) is the recommended first treatment for chronic insomnia, and a randomised trial found that treating insomnia first helped people with COMISA use CPAP more (Sweetman et al., Sleep 2019).
In Apnealytics, nightly usage hours and the trigger journal show whether short nights cluster around certain habits; your compliance report and share link let your clinician see the same.
Sources
- Espie CA, Kyle SD, Hames P, et al. The Sleep Condition Indicator: a clinical screening tool to evaluate insomnia disorder. BMJ Open, 2014.
- Sweetman A, Lack L, Catcheside PG, et al. CBT for insomnia increases CPAP use in OSA with comorbid insomnia: a randomized clinical trial. Sleep, 2019.
- Qaseem A, et al. Management of chronic insomnia disorder in adults: a clinical practice guideline. Annals of Internal Medicine, 2016.
FAQ
What is a normal Sleep Condition Indicator score?
Higher is better. A total above 16 out of 32 falls outside the range that suggests insomnia disorder. The SCI uses one cutoff rather than severity bands, so your own trend over time is often more useful than any single reading.
How is the SCI different from the Insomnia Severity Index?
Both screen for insomnia. The SCI has eight items, scored so higher is better, and maps closely to the DSM-5 definition. The ISI has seven items, scored so higher is worse, and adds severity bands. Either one completes the sleep quality step of the Sleep Check-up.
Can I have insomnia and sleep apnea at the same time?
Yes. The combination, called COMISA, is common and can make CPAP harder to use because time awake with a mask on feels long. Treating the insomnia, usually with CBT-I, has been shown to help some people use CPAP more. Ask your clinician whether both should be assessed.
Why does the SCI ask how long the problem has lasted?
Insomnia disorder is defined partly by duration. A few bad weeks after a stressful event often settle on their own. Difficulty lasting three months or more, on several nights a week, meets the duration part of the clinical definition, so the SCI gives it weight.
Why can't I see the full questionnaire here yet?
The SCI is published under a non-commercial licence. Because Apnealytics has paid plans, we are arranging commercial permission before showing the official wording. Until then, each question is described by topic only. We will not paraphrase a licensed instrument in a way that could change its meaning.
Diagnosed and on CPAP? See if it's working.
Apnealytics reads your machine's SD card and shows residual AHI, leak and usage every night. Your first 30 nights are free.
Screening tool, not a diagnosis. A result here cannot tell you whether you have sleep apnea, insomnia or any other condition — only a licensed clinician can diagnose. If you are very sleepy during the day or have dozed while driving, see a doctor promptly.
