Will medicare pay for a c pap machine after one quits working, and it was 6 years olds?

I WAS DIAGNOSED IN 2001 WITH SLEEP APNEA AND RECEIVED A C PAP MACHINE. IT QUIT WORKING AND NOW THAT I AM RETIRED, JUST WANTED TO KNOW HOW TO GO ABOUT GETTING ANOTHER C PAP MACHINE SO I CAN REST AND SLEEP AT NIGHT. THANKS