Does Medicare Cover Sleep Apnea? 
People who have been diagnosed with obstructive sleep apnea can be eligible for three months of CPAP -LRB- Continuous Positive Airway Pressure -RRB- if that is determined medically necessary . If the CPAP therapy is helpful , Medicare may extend the length of time that the machine rental and purchase of related supplies -LRB- mask , tubing -RRB- is covered . 