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Since Aristotle and Hippocrates noted the occurrence of epileptic seizures during sleep, the relationship between sleep and epilepsy has intrigued physicians and researchers. In the late nineteenth century, Gowers [1] commented on the relationship of seizures to the sleep-wake cycle. In 1929, Langdon-Down and Brain [2] observed that nocturnal seizures peaked approximately 2 hours after bedtime and between 4 AM and 5 AM, whereas daytime seizures were most prevalent in the first hour after waking. Berger’s discovery of the electroencephalogram (EEG) in the 1920s provided a diagnostic tool for studies researching the interrelationship of sleep and epilepsy [3]. Gibbs and Gibbs [4] demonstrated that interictal epileptiform discharges were activated by sleep, and obtaining sleep during an EEG recording remains a standard activating procedure today. Janz [5] differentiated awakening, nocturnal, and diurnal …