Sleep Health Assessments

Pittsburgh Sleep Quality Index (PSQI)

What is the Pittsburgh Sleep Quality Index (PSQI)?

The Pittsburgh Sleep Quality Index (PSQI) is a standardized, self-rated questionnaire used by researchers and clinicians to measure sleep quality and disturbances over a one-month period. It assesses seven different components of sleep to generate a single global score.

Important: A high PSQI score indicates poor sleep quality and suggests that a consultation with a healthcare professional may be beneficial. This tool does not provide a medical diagnosis.

PSQI Score Interpretation

Score RangeInterpretation
0 - 5Good sleep quality
6 - 10Poor sleep quality, mild disturbance
11 - 15Poor sleep quality, moderate disturbance
16 - 21Poor sleep quality, severe disturbance

A global PSQI score > 5 indicates poor sleep quality and may suggest the presence of a sleep disorder. Consultation with a healthcare professional is recommended.

Understanding the 7 Components of Your PSQI Score

The global PSQI score is the sum of scores from seven key areas related to your sleep. Each component is scored from 0 (no difficulty) to 3 (severe difficulty).

1. Subjective Sleep Quality: Your personal rating of your overall sleep quality.
2. Sleep Latency: How long it takes you to fall asleep at night.
3. Sleep Duration: How many hours of sleep you actually get per night.
4. Habitual Sleep Efficiency: The percentage of time you are actually asleep while in bed.
5. Sleep Disturbances: How often your sleep is disturbed by factors like waking up, pain, or breathing problems.
6. Use of Sleeping Medication: How often you use medication to help you sleep.
7. Daytime Dysfunction: The extent to which sleepiness affects your ability to stay awake and enthusiastic during the day.

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