Sleep hygiene

Causes of Fatigue Slideshow Pictures

Medical Definition of Sleep hygiene

Sleep hygiene: A series of practices and non-medical treatments for insomnia. Sleep hygiene includes simple steps that may improve initiation and maintenance of sleep, such as maintaining a regular sleep schedule, making the bedroom an inviting place to sleep, avoiding alcohol, large meals, or smoking prior to going to bed, and exercising regularly (but not in the 4-5 hours prior to bedtime).

Medically reviewed by Martin Zipser, MD; Board Certified: Surgery


Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.

Quick GuideThe 14 Most Common Causes of Fatigue

The 14 Most Common Causes of Fatigue

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Reviewed on 5/13/2014

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