1. A method comprising: receiving, at a computing device, body parameter data of a patient; retermining that the patient is in a particular preselected sleep cycle stage based on the body parameter data; detecting, while the patient is in the particular sleep cycle stage, a seizure event based on synchrony of brain waves of the patient; and adjusting, at the computing device, a cranial nerve stimulation parameter to substantially confirm the brain waves of the patient to a target synchrony profile associated with the particular sleep cycle stage.