Hello
I was just awarded 50% for apnea. The only thing I submitted were my 2 sleep study reports showing the apnea worsened during a period of active duty. Basically, the reports show number of apnea episodes and oxygen levels during sleep. It seems the sleep study reports are key since they show "hard science" proving it exists, rather than subjective conclusions by a Dr. I would highly recommend getting the sleep study reports directly from the lab that took them. You can't count on the reports making their way to your military medical file. Mine didn't. Hope that helps.