Follow-Up: I was diagnosed with severe sleep apnea over 2 years ago. This was discovered when I was having difficulty staying awake at work, after getting 10 hours sleep a night. I was also having problems with driving, and could drive no more than 15 minutes at a time without having to pull over to the side of the road and take a snooze. Once diagnosed, I started using a CPAP machine, and within days, I could feel a significant difference. I no longer have to use the CPAP machine all of the time, but I do use it occasionally, when I start to notice that I am more tired than I should be with the amount of sleep that I get.