[bowlingal]

according to Medicare, at least 4 hours a night is required. I see my doc every 6 months where he reads the sim card and reports findings back to Medicare, which is required. Medicare pays for your machine for the first year, if they don't get the required information, they can take the machine back, or make you pay for it. I just changed supplier companies to NewAir located in Eustis 352-589-6247 and they are excellent. I used to go to Five Star in Fruitland Park, but they closed up. You are supposed to get new supplies every 3 or 6 months. New water basin, new tubing, new pillow inserts, or new mask if that is what you use that Medicare pays for. My doc gave me a list of supplies you are supposed to get according to Medicare. Ask your doc for that. I use Resmed products.