title: The subjective meaning of sleep quality: a comparison of individuals with and without insomnia.
abstract: OBJECTIVE
  "Sleep quality" is poorly defined yet ubiquitously used by researchers, clinicians and patients. While poor sleep quality is a key feature of insomnia, there are few empirical investigations of sleep quality in insomnia patients. Accordingly, our aim was to investigate the subjective meaning of sleep quality among individuals with insomnia and normal sleepers.
  
  
  METHODS
  Cross sectional between groups (insomnia vs. good sleeper). Analyses were conducted across three outcome variables: (1) a "Speak Freely" procedure in which participants' descriptions of good and poor sleep quality nights were analysed, (2) a "Sleep Quality Interview" in which participants judged the relative importance of variables included in previous research on sleep quality and (3) a sleep quality diary completed over seven consecutive nights.
  
  
  METHODS
  University Department of Psychiatry.
  
  
  METHODS
  Individuals with insomnia (n = 25) and normal sleepers (n = 28).
  
  
  METHODS
  N/A.
  
  
  RESULTS
  Both the insomnia and normal sleeper groups defined sleep quality by tiredness on waking and throughout the day, feeling rested and restored on waking, and the number of awakenings they experienced in the night. The insomnia group had more requirements for judging sleep to be of good quality.
  
  
  CONCLUSIONS
  The meaning of sleep quality among individuals with insomnia and normal sleepers was broadly similar. A comprehensive assessment of a patient's appraisal of their sleep quality may require an assessment of waking and daytime variables.
authors: Department of Psychology, University of California, Berkeley, CA 94720-1650, USA.
authors: Allison G
authors: AG
authors: Harvey
authors: Kathleen
authors: K
authors: Stinson
authors: Katriina L
authors: KL
authors: Whitaker
authors: Damian
authors: D
authors: Moskovitz
authors: Harvinder
authors: H
authors: Virk
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D000437:Alcoholism / Q000523:psychology; D001008:Anxiety Disorders / Q000523:psychology; D001294:Attitude to Health; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003865:Major Depressive Disorder / Q000523:psychology; D005221:Fatigue / Q000523:psychology; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008499:Medical Records; D009042:Motivation; D010555:Personality Inventory; D011788:Quality of Life / Q000523:psychology; D012890:Sleep; D007319:Sleep Initiation and Maintenance Disorders / Q000523:psychology*; D014851:Wakefulness