The take home message of this study is that sleep apnea is an important medical condition that can lead to a number of health problems including severe cardiovascular problems if it goes untreated for a prolonged period of time.  Patients with sleep apnea feel tired.  Many patients feel tired all of the time.  In spite of sleeping 10 or 12 hours a night, their daytime fatigue continues because the quality of their sleep is extremely poor.  There are many ways to treat and try to improve sleep apnea and this study examines more closely one of those options. Patients may also consider weight loss, mouth guards (oral appliances) and CPAP.