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Sleep Quality Questionnaire Test

Understand perceived sleep quality and next-day alertness in about 2 minutes. Six quick items make it easy to track changes over time and support clinical or research decisions.
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Questions: 62 minutes
Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.
08:30
October 2, 2025
October 2, 2025
Material has been updated
15530 views
1937 completions
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How the Scales are Structured
example score
8/30
Sleep Quality Scale (SQS)
Assesses a person’s overall subjective sleep quality and how restorative their sleep feels.
Potential sleep problems
Borderline
Typical for healthy sleep
6 – 18: Potential sleep problems | 19 – 21: Borderline | 22 – 30: Typical for healthy sleep
A score of 8 falls in the “Potential sleep problems” range, indicating markedly reduced perceived sleep quality compared with typical healthy scores.
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DATA-BASED USER COHORTS
Who Usually Takes This Test?
People with sleep complaints
44%OF USERS
They have trouble falling asleep, staying asleep, or waking refreshed and want a quick picture of how restorative their sleep feels.
Patients in insomnia treatment
33%OF USERS
They take it repeatedly during therapy to track whether sleep quality is improving and to discuss next steps with a clinician.
Clinic and research participants
23%OF USERS
They complete it as part of a screening or study where a fast, standardized self-rating of sleep is needed.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
RESULTS YOU CAN ACTUALLY USE
What You’ll See After You Finish the Test
Scale Results
— Explained Clearly
Your scores across each test scale, translated into plain, usable insights. Not just numbers, but what they actually mean for your daily life, emotional state, and overall well-being.
AI-Powered
Interpretation
A structured, clinically grounded explanation. Our AI analyzes patterns and relationships between scales to provide a coherent interpretation — without alarmist language.
Statistical
Comparison
See how you compare to others. Your scores are placed in a statistical context, showing percentiles and trends based on anonymized platform data to help you understand what`s typical.
Practical
Recommendations
Actionable guidance tailored to your profile. Receive clear, realistic suggestions you can apply immediately — focused on coping, self-regulation, and realistic next steps.
AI-Detected
Insights
Key patterns you might not notice on your own. Surfacing subtle connections in your responses that help you better understand what may be driving your current results.
Discuss with
an AI Psychologist
Clarify, reflect, and explore right away. Talk through your outcomes, ask questions, and explore meanings in a calm, non-diagnostic dialogue environment.
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Used in 52+ countries
Benchmarking
See How You Compare
Once you finish the test, your results will be compared with real-world data from people in your country.
Below is a preview of the benchmarks we use to place your score in context.
Sleep Quality Scale (SQS)
Average
14.1
Normal range
9.6 — 18.5
min.
6
max.
30
majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.
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Trusted by 22k+ Users Worldwide
CLEAR ANSWERS TO COMMON QUESTIONS
Frequently Asked Questions

Any questions left?

What does this questionnaire measure?
It measures perceived sleep quality and how restorative sleep feels. It covers key sleep features such as sleep onset, awakenings, and next-day alertness.
How long does it take and how many items are included?
Completion typically takes about two minutes. It includes six questions.
What time period should responses reflect?
Responses should reflect typical recent sleep rather than a single unusual night. If sleep varies widely, responses should reflect the most common pattern.
How should the questions be answered?
Select the option that best matches the usual experience for each item. Each item should be answered, even if an estimate is required.
How are results used?
Scores support screening and tracking change over time, such as during treatment for sleep problems. Results are interpreted alongside clinical information and are not a standalone diagnosis.
WHAT THE TEST MEASURES
About This Assessment
Sleep Quality Questionnaire Test

Sleep Quality Questionnaire Test

sleep

This brief self-report measure assesses a respondent’s perceived sleep quality and related sleep complaints over a recent period. The Sleep Quality Questionnaire is intended to support rapid clinical screening and baseline characterization of subjective sleep.

The instrument includes 6 items and typically takes about 2 minutes to complete. Items query common domains of sleep and restorative functioning, allowing clinicians to summarize overall perceived sleep quality and track change over time.

In practice, the Sleep Quality Questionnaire may be used to monitor response to interventions for insomnia and other sleep-related concerns and to guide follow-up assessment as needed. It is commonly cited in the sleep literature (Buysse, Reynolds, Monk, Berman, & Kupfer).

Author: C. F. Reynolds III, D. J. Buysse, D. J. Kupfer, S. R. Berman, T. H. Monk
Literature: Buysse, D. J., Reynolds, C. F., Monk, T. H., Berman, S. R., & Kupfer, D. J. The Pittsburgh sleep quality index: A new instrument for psychiatric practice and research. Psychiatry Research. 1989.; Morin, C. M., & Espie, C. A. Insomnia: A clinical guide to assessment and treatment. Springer. 2003.
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