You don't realize how many people have this until you read it here, I was diagnosed about one year ago, i fell asleep with my grandson in my car, and he gently woke me up before i hit the median, need i say more, iwas pretified, i called my dr. and told her something was terribly wrong, this was the first itme i heard of this, i hadn't been sleeping for years, plus i hve insomnia i have to use sleeping pills to try at help the insomnia and the cpap for sa.. It does make a differance and you have to stick with it, i was told it took time to get sa and it will take time to treat it, i wish everyone well and please try to use the machine if one doesn't work ask for another machine or mask. Keep bugging them this is your life. God Bless