LINDA
I ALSO HAVE SLEEP APNEA BUT MINE IS ONLY MILD TO MODERATE. THE MASK I HAVE TO WEAR AT NIGHT TO INSURE I BREATHE IS VERY UNCOMFORTABLE. THIS IS NOT A RARE CONDITION. IT IS VERY COMMON AND MANY PEOPLE DON'T KNOW THEY HAVE IT. MY HEART GOES OUT TO YOUR FATHER AND TO YOU. I SUGGEST YOU GO TO THE THE MAYO CLINIC WEB SITE AND READ AS MUCH AS YOU CAN FIND ABOUT THIS CONDITION.