Answer: WHILE I READ WHAT YOU SAY , MY WIFE SAVED MY HARDHEADED LIFE!OVER 20+YEARS AGO I WENT TO MY FAMILY DOCTOR AND COMPLANINED OF BEING TIRED! HE SAID " YOU KNOW POWELL I FEEL TIRED IN THE AFTERNOON TOO" ANYWAY MADE ME FEEL LIKE A FOOL, AND I FORGOT ABOUT THE WHOLE THING UNTIL LAST YEAR!THEN WHEN I WAS SEDATED IN THE EMERGENCY ROOM I STOPPED BREATHING AT LEAST 3 TIMES, AND THE DOCTORS ADVISED MY WIFE, DID HE HAVE SLEEP APNEA? BECAUSE HE DID NOT SEEM TO WANT TO BREATH! FOLLOWING THIS STINT IN THE BIG HOSPITAL THIS HARD HEADED I CAN MAKE IT ON MY OWN WENT TO A SLEEP CLINIC!IT WAS NO BED OF ROSES! BUT BEARABLE! 2 NIGHTS! WIRES SENSORS OFF EVERYWHERE CAMERA RECORDING YOUR EVERY MOVE, AND TO TOP IT OFF AIR BEING BLOWN DOWN YOUR NOSE AT A SWEET 2 MPH ULTIMATELY SEEMINGLY GOING TO AT LEAST 100 MPH OR TH EXHAUST OF A JET AIRCRAFT! I REALLY HATED IT!THE RESULTS >>> YOU SEE HERE MR. S THIS 15 MINUTES WHEN THE AIR PRESSURE WAS AT 10 INCHES OF WATER ... SEE THE SQUIGGLY LINES .... THATS REM SLEEP .... THATS WHAT YOU DID NOT GET BEFORE! ...BIG DEAL SO IN THAT NIGHT OF TERROR TESTING I HAD 15 MINUTES OF "GOOD SLEEP" I DID NOT FEEL AS THOUGH I SLEPT AT ALL!SO AS THE DOCTOR PRESCRIBED I GOT MY CPAP MACHINE AND STARTED USING IT! I SWORE I WOULD HATE IT!I LOVE GOD! I LOVE MY WIFE! I LOVE THIS DAMN MACHINE!