Pittsburgh Sleep Quality Index (PSQI)

A good sleep quality index score on the Pittsburgh Sleep Quality Index (PSQI) is typically considered to be 5 or less. Scores above 5 indicate poorer sleep quality and may suggest the presence of sleep disturbances.

Yes, the Pittsburgh Sleep Quality Index is a validated and widely used tool in sleep research and clinical practice. It has been validated against objective measures of sleep and shown to reliably assess sleep quality across various populations.

The Pittsburgh Sleep Quality Index comprises seven components: subjective sleep quality assesses overall satisfaction with sleep, sleep latency measures how quickly one falls asleep, and sleep duration evaluates total hours slept. Habitual sleep efficiency quantifies the percentage of time spent asleep while in bed, sleep disturbances record frequency of waking up during the night, use of sleeping medication tracks reliance on sleep aids, and daytime dysfunction evaluates impact on daily functioning due to poor sleep quality.