Togo F et al. - CFS patients had significant differences in polysomnograpic findings from healthy controls and felt sleepier and more fatigued than controls after a night's sleep. This difference was due to neither diagnosable sleep disorders nor co-existing fibromyalgia, but primarily due to a decrease in the length of periods of uninterrupted sleep in the patients with more sleepiness in the morning than on the night before.
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