PITTSBURGH SLEEP QUALITY INDEX

The PSQI is a widely used questionnaire to measure overall sleep quality over a 1-month period, including sleep duration, disturbances, and efficiency. You can find the original paper that proposed the PSQI here. Below, you will find the pdf of the PSQI, as well as the instructions for scoring the PSQI.

Please cite the reference for the PSQI in any publications:

Buysse,D.J., Reynolds,C.F., Monk,T.H., Berman,S.R., & Kupfer,D.J. (1989). The Pittsburgh Sleep Quality Index (PSQI): A new instrument for psychiatric research and practice. Psychiatry Research, 28(2), 193-213.