Medical devices for treating sleep apnea, nocturnal gastroesophageal reflux and heartburn, headaches, sleep-related hypertension, secondary REM sleep behavior disorder, nocturnal bedwetting, sleep-walking, nightmares and night terrors, nocturnal bruxism; Medical devices for the prevention of sports concussions and chronic traumatic encephalopathy; Medical devices for the prevention of sleep apnea, nocturnal gastroesophageal reflux and heartburn, headaches, sleep-related hypertension, secondar...