Sleep Apnea Syndrome (OSAS) is a disease complex of obesity, snoring and excessive daytime sleepiness. OSAS leads to 25% to 30% more chances of getting heart diseases, kidney failure and brain stroke. I am having Polysomnography machine to detect sleep apnea syndrome. PSA done during night (i.e. sleeping period of 6-8 hours). It can be done at our center or at patients home (portable).