Journal
SLEEP MEDICINE
Volume 9, Issue -, Pages S10-S17Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1389-9457(08)70011-X
Keywords
Sleep quality; Objective measures; Subjective measures; Polysomnography; Electroencephalogram; Sleep diary
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Funding
- Department of Veterans Affairs Merit Review Program [0009]
- The National Heart, Lung and Blood Institute [R01-HL-073259-01]
- Wolters Kluwer Health
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Despite being used commonly in sleep medicine, the term sleep quality has not been rigorously defined, The purpose of this article is to consider objective Measures of the subjective sleep quality experience. In order to do so, it was necessary to choose a definition of 4 sleep quality as a basis for discussion. We have chosen to employ the simple Likert-style rating of (the previous night's) sleep quality, commonly included as an item on sleep diaries, as the core sleep quality indicator and focus of this article. The potential objective measures discussed include polysomnography, cyclic alternating pattern and actigraphy. We review the strengths and weaknesses of these measures as well as discuss challenges facing the development of an objective correlate of sleep quality ratings, including that such ratings may reflect non-sleep phenomena such as mood or health status and the possibility that sleep quality may reflect different aspects of sleep among people. We also discuss new approaches intended to address these challenges, including: (1) combining different types of measures; (2) sub-grouping individuals based on clinical or physiological characteristics and developing different measures in these Subgroups; and (3) sub-grouping based on the association of potential measures and quality ratings over nights. (C) 2008 Published by Elsevier B.V. All rights reserved.
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