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What sways people's judgment of sleep quality? A quantitative choice-making study with good and poor sleepers

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Ramlee, Fatanah, Sanborn, Adam N. and Tang, Nicole K. Y. (2017) What sways people's judgment of sleep quality? A quantitative choice-making study with good and poor sleepers. Sleep, 40 (7). zsx091. doi:10.1093/sleep/zsx091 ISSN 0161-8105.

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Official URL: https://doi.org/10.1093/sleep/zsx091

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Abstract

Study objectives:
We conceptualized sleep quality judgment as a decision-making process and examined the relative importance of 17 parameters of sleep quality using a choice-based conjoint analysis.

Methods:
One hundred participants (50 good sleepers; 50 poor sleepers) were asked to choose between 2 written scenarios to answer 1 of 2 questions: “Which describes a better (or worse) night of sleep?”. Each scenario described a self-reported experience of sleep, stringing together 17 possible determinants of sleep quality that occur at different times of the day (day before, pre-sleep, during sleep, upon waking, day after). Each participant answered 48 questions. Logistic regression models were fit to their choice data.

Results:
Eleven of the 17 sleep quality parameters had a significant impact on the participants’ choices. The top 3 determinants of sleep quality were: Total sleep time, feeling refreshed (upon waking), and mood (day after). Sleep quality judgments were most influenced by factors that occur during sleep, followed by feelings and activities upon waking and the day after. There was a significant interaction between wake after sleep onset and feeling refreshed (upon waking) and between feeling refreshed (upon waking) and question type (better or worse night of sleep). Type of sleeper (good vs poor sleepers) did not significantly influence the judgments.

Conclusions:
Sleep quality judgments appear to be determined by not only what happened during sleep, but also what happened after the sleep period. Interventions that improve mood and functioning during the day may inadvertently also improve people’s self-reported evaluation of sleep quality.

Item Type: Journal Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RA Public aspects of medicine
Divisions: Faculty of Science, Engineering and Medicine > Science > Psychology
Library of Congress Subject Headings (LCSH): Sleep -- Health apsects, Well-being
Journal or Publication Title: Sleep
Publisher: American Academy of Sleep Medicine
ISSN: 0161-8105
Official Date: 1 July 2017
Dates:
DateEvent
1 July 2017Published
19 May 2017Available
29 April 2017Accepted
Volume: 40
Number: 7
Article Number: zsx091
DOI: 10.1093/sleep/zsx091
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 16 May 2017
Date of first compliant Open Access: 28 June 2017
Funder: Economic and Social Research Council (Great Britain) (ESRC), National Institute for Health Research (Great Britain) (NIHR)
Grant number: ES/K004948/1 (ESRC), PB-PG-0213-30121 (NIHR)

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