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Common causes of Sleep disturbance. Some of the common causes of Sleep disturbance may include: 1  Aging.  Alcoholism or abruptly stopping alcohol after long-term use.
Our original intention had been to conduct a study. that induced sleep fragmentation in normal sleepers and then. evaluate changes in daytime function. However, it was unclear. from the literature at the time how much sleep fragmentation was. necessary to cause significant changes in the restorative function. of the sleep. The best available examples of sleep fragmentation. arose from the study of the sleep of patients with OSA. But in. these patients, apneas might cause very transient EEG arousals, longer EEG arousals associated with a change in sleep stage, or. even awakenings 16 seconds to several minutes in duration.