Caffeine-induced sleep disorder

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Caffeine-induced sleep disorder
Classification and external resources
ICD-9 292.85

Caffeine-induced sleep disorder is a psychiatric disorder that results from overconsumption of the stimulant caffeine. "When caffeine is consumed immediately before bedtime or continuously throughout the day, sleep onset may be delayed, total sleep time reduced, normal stages of sleep altered, and the quality of sleep decreased."[1] Caffeine reduces slow-wave sleep in the early part of the sleep cycle and can reduce rapid eye movement sleep later in the cycle.[2] Caffeine increases episodes of wakefulness, and high doses in the late evening can increase sleep onset latency.[2] In elderly people, there is an association between use of medication containing caffeine and difficulty in falling asleep.[2]

The specific criteria for this disorder in the fourth version of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) include that there must be a significant inability to sleep which is caused entirely by the physiological effects of caffeine as proven by an examination; if sleeping issues can be accounted for due to a breathing-related sleep disorder, narcolepsy, a circadian rhythm sleep disorder or a mental disorder, then caffeine-induced sleep disorder is not the cause.[citation needed] This condition causes a notable impairment in functioning in sufferers.[3]


  1. ^ "Sleep and Caffeine". Johns Hopkins University School of Medicine. Retrieved 3 October 2011. 
  2. ^ a b c Winston, A. P. (2005). "Neuropsychiatric effects of caffeine". Advances in Psychiatric Treatment 11 (6): 432. doi:10.1192/apt.11.6.432.  edit
  3. ^ R. Gregory Lande (2005-07-07). "Caffeine-Related Psychiatric Disorders". eMedicine. Retrieved 2007-05-05. 

Further reading[edit]

  • Broderick P, Benjamin AB (December 2004). "Caffeine and psychiatric symptoms: a review". J Okla State Med Assoc 97 (12): 538–42. PMID 15732884.