While coverage of sleep apnea treatments or sleep apnea dental appliances can vary widely from one insurance provider to another – the coverage of a required sleep study is often times more consistent. The majority of insurance companies will cover a sleep study if your doctor is indicating that it is necessary for a diagnosis and treatment of a health disease. Sleep studies for sleep apnea generally meet this criteria because of the health complications that could develop if one were to go to untreated with sleep apnea.