Pittsburgh Sleep Quality Index (PSQI)
Night-time sleep problems.
Population (Age range)
13 years and older
Time to administer
Time period covered
Number of items/version
19 self-rated questions and 5 additional questions for a bed partner or roommate.
PSQI is a self-rated questionnaire that primarily assesses nighttime sleep problems. It focuses on sleep experiences over the past month.
Buysse,D.J., Reynolds,C.F., Monk,T.H. et al. The Pittsburgh Sleep Quality Index (PSQI): A new instrument for psychiatric research and practice. Psychiatry Research. 1989;28(2):193-213.
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