Cpap, which will be used to ensure that the airway remains open at night in patients with a certain level of sleep apnoea disorder after PSG test shooting and in patients where the operation will be inadequate, is a continuous positive airway pressure therapy that ensures that the upper airways remain open during sleep and tries to provide sleep and respiratory comfort for people who experience respiratory distress and disorders during sleep. Cpap stands for (Contnous Positive Airway Pressure). It is a system that prevents the muscles from collapsing during the night by transmitting the pressurised air, which is kept under control by the doctor for 1 night and whose condition is determined, to the airway through the mouth and nose through the mask.