*9.3.2.2 Sleep*

At the beginning of sleep, epileptic discharges (ED) are also initiated. The ED can be partial, often on posterior temporal topography. Unilateral subclinical discharges can be detected alternating between both hemispheres. During the development of the disease, the EEG of the sleep will show a pattern of bilateral spike-wave activity, continuous or sub-continuous, during more than 85% of the NREM sleep time (ESES syndrome) [97]. LKS is a clinical subtype included in the wide spectrum of the clinical manifestations of ESES syndrome.
