Editing Sleep inertia (section)

{{Short description|Impaired physiological state after awaking}}
'''Sleep inertia''' is a physiological state of impaired cognitive and sensory-motor performance that is present immediately after awakening. It persists during the transition of [[sleep]] to wakefulness, where an individual will experience feelings of drowsiness, disorientation and a decline in motor [[dexterity]].<ref>{{cite journal|last1=Tassi|first1=P.|last2=Muzet|first2=A.|year=2000|title=Sleep inertia|journal=Sleep Medicine Reviews|volume=4|issue=4|pages=341–353|doi=10.1053/smrv.2000.0098|pmid=12531174}}</ref><ref>{{cite journal|last1=Wertz|first1=A.T.|last2=Ronda|first2=J.M.|last3=Czeisler|first3=C.A.|last4=Wright Jr|first4=K.P.|year=2006|title=Effects of Sleep Inertia on Cognition|journal=JAMA: The Journal of the American Medical Association|volume=295|issue=2|pages=163–4|doi=10.1001/jama.295.2.163|pmid=16403927}}</ref> Impairment from sleep inertia may take several hours to dissipate. In the majority of cases, morning sleep inertia is experienced for 15 to 30 minutes after waking.<ref name=":03">{{cite web|url=http://www.sleepingexpert.org/what-is-sleep-inertia/|title=What Is Sleep Inertia? - Sleeping Expert|website=Sleeping Expert|language=en-US|access-date=2015-11-09|date=2015-10-05}}</ref>

Sleep inertia is of concern with decision-making abilities, safety-critical tasks and the ability to operate efficiently soon after awakening. In these situations, it poses an [[occupational hazard]] due to the cognitive and motor deficits that may be present.