Diagnostic Sleep Testing/Polysomnography is a comprehensive evaluation of how your body functions during sleep. This test is performed at our sleep center and involves an overnight stay where our team monitors and evaluates your sleep including things such as EEG, EKG, respirations, oxygen levels, muscle tone and eye and extremity movements. This test is used to diagnose a variety of sleep disorders or to help adjust your treatment plan if you have already been diagnosed with a sleep disorder.