Pittsburgh Sleep Quality Index (PSQI)

The standard questionnaire for overall sleep quality over the past month, scored across seven components.

✓ Reviewed by Dr. Poonam Sekhon Chahal · 29 May 2026

How this is calculated

Seven components (sleep quality, latency, duration, efficiency, disturbances, medication, daytime dysfunction) each score 0–3 and sum to a global 0–21. Above 5 indicates poor sleep.

Sources

  1. Buysse DJ, Reynolds CF, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res 1989.
This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.

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