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Insomnia Self-Assessment Tool

A free, clinically-inspired insomnia screener based on the Insomnia Severity Index (ISI).

1. Difficulty falling asleep

2. Difficulty staying asleep

3. Waking up too early

4. How dissatisfied are you with your current sleep?

5. How noticeable is your sleep problem to others?

6. How worried are you about your sleep?

7. How much does sleep interfere with daily functioning?

Your ISI score

0/28

No clinically significant insomnia

Your sleep symptoms are within a healthy range. Maintain consistent wake time and sleep hygiene.

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Use this free, evidence-informed insomnia self-assessment to screen yourself against the same criteria sleep specialists rely on — the Insomnia Severity Index (ISI) and DSM-5 chronic insomnia disorder framework. In under two minutes you'll get a personalized severity score, an interpretation against clinical thresholds, and a clear next-step pathway covering cognitive behavioral therapy for insomnia (CBT-I), sleep hygiene tuning, and when to escalate to a board-certified sleep physician.

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1What This Insomnia Self-Assessment Measures

Insomnia is the most common sleep disorder on the planet — affecting roughly 1 in 3 adults in any given year, and meeting criteria for chronic insomnia disorder in about 10–15%. But most people who struggle to fall asleep, wake up at 3 AM, or feel unrefreshed in the morning have never been formally evaluated. This insomnia self-assessment tool fills that gap. It mirrors the Insomnia Severity Index (ISI), the most widely used research-grade insomnia screener, and aligns with the diagnostic criteria for insomnia disorder defined in DSM-5 and the International Classification of Sleep Disorders, Third Edition (ICSD-3).

The questions probe four clinical anchors: difficulty initiating sleep (sleep onset latency), difficulty maintaining sleep (nocturnal awakenings), early morning awakening, and the daytime consequences — fatigue, mood disturbance, cognitive slowing, social impairment. A composite score then tells you whether your symptoms fall into the no-clinical-insomnia, sub-threshold, moderate, or severe range.

2How the Tool Calculates Your Score

Insomnia Severity Index (0–28)

Sum of 7 items × 0–4 → 0–7 not clinical · 8–14 sub-threshold · 15–21 moderate · 22–28 severe

Each question scores from 0 (no problem) to 4 (very severe). The seven items cover: trouble falling asleep, trouble staying asleep, problems waking too early, satisfaction with current sleep, interference with daily functioning, noticeability of impairment to others, and overall worry/distress about sleep. The total maps to a clinically validated severity band, the same one used in landmark CBT-I trials and meta-analyses.

  • 0–7 — No clinically significant insomnia.
  • 8–14 — Sub-threshold insomnia (worth tracking; lifestyle interventions usually sufficient).
  • 15–21 — Moderate clinical insomnia (CBT-I strongly indicated).
  • 22–28 — Severe clinical insomnia (CBT-I plus medical evaluation strongly indicated).

3The DSM-5 Chronic Insomnia Disorder Criteria

A high score on the questionnaire alone is not a diagnosis. Chronic insomnia disorder, per DSM-5, additionally requires that the symptoms (a) occur at least three nights per week, (b) persist for at least three months, (c) cause clinically significant daytime distress or impairment, and (d) occur despite adequate opportunity for sleep. The tool flags whether your reported pattern meets all four criteria.

Acute (situational) insomnia

Days to weeks. Usually triggered by stress, travel, or a new medication.

Often resolves with hygiene + brief stimulus control.

Chronic insomnia disorder

≥3 nights/week for ≥3 months with daytime consequences.

First-line treatment: CBT-I, not sleeping pills.

4Subtypes — Sleep Onset, Maintenance, and Early Morning Awakening

Sleep onset insomnia

Trouble falling asleep within 30 minutes. Often tied to a delayed circadian phase, evening light exposure, or pre-sleep cognitive arousal.

Sleep maintenance insomnia

Frequent or prolonged awakenings after initial sleep onset. Linked to alcohol, untreated sleep apnea, GERD, anxiety, and perimenopause.

Early morning awakening

Waking ≥30 minutes earlier than desired and unable to return to sleep. Strongly associated with depressive disorders and advanced sleep phase.

Mixed insomnia

More than one pattern — the most common presentation in primary care, and the type that responds best to a structured CBT-I protocol.

5What Drives Insomnia — The 3-P Model

Spielman's 3-P behavioral model — Predisposing, Precipitating, and Perpetuating factors — is the conceptual backbone of CBT-I. Predisposing factors include genetics, hyperarousal traits, and family history. Precipitating factors are the trigger — a job loss, bereavement, a medical event, a new baby. Perpetuating factors are the behaviors that turn a 2-week sleep blip into a 2-year insomnia disorder: spending more time in bed, sleeping in on weekends, daytime napping, late-evening alcohol, and clock-watching.

6What CBT-I Actually Looks Like

Cognitive Behavioral Therapy for Insomnia (CBT-I) is the first-line treatment recommended by the American Academy of Sleep Medicine (AASM) and the American College of Physicians for chronic insomnia in adults. It is delivered in 4–8 weekly sessions and consists of five integrated components.

  1. Sleep restriction therapy — temporarily compressing time in bed to consolidate sleep and rebuild homeostatic drive.
  2. Stimulus control — re-pairing the bed with sleep only (no scrolling, no working, no clock-watching).
  3. Cognitive restructuring — challenging catastrophic thoughts ('If I don't sleep tonight my whole week is ruined').
  4. Sleep hygiene — temperature, light, caffeine, alcohol, exercise, screens.
  5. Relaxation training — paced breathing, progressive muscle relaxation, or body-scan meditation.

70–80%

of CBT-I patients achieve remission of insomnia

0%

rebound insomnia compared to benzodiazepines

1 yr+

average durability of CBT-I gains

7When to See a Doctor — Red-Flag Symptoms

These features point to obstructive sleep apnea, narcolepsy, parasomnias, or major depression — all of which require diagnosis-specific care. Use this tool's apnea screener and the Epworth Sleepiness Scale alongside the insomnia questionnaire to triage.

8What You Can Start Doing Tonight

Anchor wake time

Same wake time 7 days a week — the strongest single circadian signal you can give your brain.

Get morning light

10–15 min outdoor light within 30 minutes of waking advances melatonin and tightens the sleep window.

Caffeine cutoff at 2 PM

Caffeine has a 5–7-hour half-life; an afternoon cup measurably reduces deep sleep at midnight.

Bed for sleep only

If you're awake >20 minutes, get up, dim lights, do something boring until sleepy. Then return.

Cool the room

65–68°F / 18–20°C accelerates the core temperature drop required for sleep onset.

Limit alcohol

Alcohol shortens onset but fragments the second half of the night and suppresses REM.

9Frequently Asked Questions

Is this tool a medical diagnosis?

No. It's a validated screening instrument that mirrors the Insomnia Severity Index. A formal diagnosis of chronic insomnia disorder requires a clinician — but the score is reliable enough to drive a confident next step.

How long until CBT-I works?

Most patients see meaningful change within 2–3 weeks; full response typically by week 6–8. The first 1–2 weeks of sleep restriction can transiently worsen sleepiness, which is expected and tells the protocol it's working.

Are sleeping pills safe long-term?

Z-drugs and benzodiazepines are second-line and generally not recommended for chronic insomnia beyond a few weeks. They carry tolerance, dependence, fall, and cognitive risks — particularly in older adults — and rebound insomnia on discontinuation.

Frequently asked questions

Is this an insomnia diagnosis?+

No — it's a validated screening tool that mirrors the Insomnia Severity Index. A formal diagnosis requires a clinician.

What's a high score?+

15 or higher on the 0–28 scale indicates moderate-to-severe clinical insomnia. CBT-I is the recommended first-line treatment.

How often should I retake this?+

Every 2–4 weeks while making sleep changes; monthly otherwise. The score is most useful as a trend.

What's the difference between acute and chronic insomnia?+

Acute insomnia lasts under 3 months and usually has a clear trigger. Chronic insomnia occurs 3+ nights per week for 3+ months and typically self-perpetuates through anxiety and conditioning.

Is CBT-I better than sleeping pills?+

Yes — CBT-I produces longer-lasting improvements with no side effects, and it's the official first-line treatment per the American College of Physicians.

Can insomnia be cured permanently?+

Most chronic insomnia responds to 6–8 weeks of CBT-I with sustained benefit at 1-year follow-up in 70–80% of patients.

Does insomnia run in families?+

There's a moderate genetic component (~30–40% heritability), but environment, stress conditioning, and habits drive most cases.

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