I had a sleep study about a year ago, and it was determined that I have severe sleep apnea. I had 47 episodes and hour, and some of them were almost a minute long. (If you aren't familiar with apneas, it is when someone's airway closes and they stop breathing.) I had so many episodes that after 2 hours they "split" the study. Normally, the patient spends the first night sleeping and being monitored. Then the second night is adjusting the monitor. The doctor ordered a CPAP (constant positive airway pressure) machine. But I could never get it to work. And due to insurance issues, I couldn't see him again. Last month I finally made it to a new doctor. He ordered the machine to be reprogrammed, but it required a new machine. My new machine arrived yesterday. Last night I slept the entire night with it. And my new full face mask. Isn't it pretty?