Sleep Apnea Mouth Guard

Sleep Apnea Mouth Guard. Sleep apnea is a serious respiratory disorder that occurs during sleep in which the airways are blocked due to the loosening and narrowing of the throat wall. When we sleep, the throat muscles can relax and weaken. Under normal circumstances, this condition does not interfere with breathing. But in people with sleep apnea, the muscles become too weak, causing narrowing or obstruction of the airways that interfere with breathing.