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Sleep Quality

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Encyclopedia of Behavioral Medicine


Sleep refreshment; Sleep satisfaction


Sleep quality is defined as one’s satisfaction of the sleep experience, integrating aspects of sleep initiation, sleep maintenance, sleep quantity, and refreshment upon awakening.


Sleep quality is a vital construct to clinicians and researchers due to the high prevalence of disturbed sleep and insomnia, and the clear relevance of sleep quality to optimal health and functioning. Yet, despite its common usage, “sleep quality” is a term without a clear definition (Krystal & Edinger, 2008). In fact, sleep quality is likely to have different meanings from one person to the next. For someone with problems initiating sleep, the sleep onset period may be the strongest determinant of sleep quality. In contrast, the relative difficulty of going to sleep may be of trivial importance to someone whose sleep is restless and rife with frequent awakenings.


Measurement of sleep quality is difficult due to its imprecise...

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References and Readings

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Correspondence to Christopher Kline .

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© 2013 Springer Science+Business Media, New York

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Kline, C. (2013). Sleep Quality. In: Gellman, M.D., Turner, J.R. (eds) Encyclopedia of Behavioral Medicine. Springer, New York, NY.

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