Polysomnogram (PSG): an overnight stay that typically lasts for 8-10 hour. It records brain activity, eye movements, heart rate, blood pressure, oxygen levels and body movement.
The recommended treatment for Obstructive Sleep Apnea is called Continuous Positive airway Pressure (CPAP), It prevents the upper airway from collapsing during sleep by providing a flow of air through the nose/ face using a mask.