OSA or Obstructive Sleep Apnea normally happens when the soft tissue in the back of the throat collapses during sleep blocking the passage of the airway. If left untreated, OSA causes a number of serious health issues, including high blood pressure, cardiovascular disease, memory loss, weight gain, and headaches. HIGHLIGHTS: Environmentally friendly material Less Invasive Than Surgery or Vaccinations Smooth pulse, without disturbing normal sleep.