Epilepsy and Obstructive Sleep Apnea Syndrome (OSAS) are both associated with abnormal brain activity and frequently coexist. Epilepsy patients were found to be drowsier when compared with general population using the Epworth Sleepiness Scale. The aim of this study is to determine the association of obstructive sleep apnea syndrome (OSAS) in epilepsy patients, as well as the prevalence of obstructive sleep apnea syndrome and the predictors of sleepiness among epileptics in South East Asian patients. Five of sixty participants (8.3%) were diagnosed with OSAS and four of them were males. OSAS...