How does the 30 day mask return policy work with most DMEs and mask manufacturers? If you try a Respironics full face mask and you don't like it, would you then be able to try a Resmed nasal pillows mask within 30 days, and then a Fischer and Paykel nasal mask within 30 days of that, at no extra cos...

There are a few CPAP and sleep apnea statistics that don't seem very easy to find. Does anyone have any educated guesses at the following? How many current CPAP machines users are there in the United States, or the world? How many new CPAP users are there each year, including the people who don't en...

Would the information from CPAP machine SD cards be subject to HIPAA if the information was being transferred over the internet through some software program? Or do CPAP SD cards not store any personally identifiable information, so they wouldn't be subject to HIPAA regulations?

Would it be technically possible for a not-yet-designed Sleepyhead smartphone app to receive data from a CPAP machine wirelessly? For example, could it receive information from an attachable Respironics bluetooth modem, or a future built-in bluetooth modem like the one in the Z1 travel CPAP machine?...