Medicare and DOT CPAP Compliance Rules
Medicare continues CPAP coverage if you use it at least 4 hours a night on 70% of nights in a 30-day stretch within the first 3 months and see a clinician between day 31 and 91; DOT examiners often apply a similar standard.
Updated
CPAP only works if you use it, and payers check. Here is how the two most common sets of rules work.