This is the first known large scale continuous Sleep Apnea study. Sleep Apnea is a potentially serious sleep disorder. It causes breathing to repeatedly stop and start during sleep. Studies have found a direct correlation between High Blood Pressure, Diabetes, Stroke, Heart-Attack, and Apnea. In a large study of more than 30,000 sleepers, the data shows that more than 14% of the sleepers experienced serious sleep apnea at least one night a week. There are effective therapies for apnea. The diagnosis must come first. There are several types of sleep apnea, but the most common is obstructive sleep apnea. This type of apnea occurs when your throat muscles intermittently relax and block your airway during sleep. A noticeable sign of obstructive sleep apnea is snoring.