I have sleep apnea and now I sleep with a BiPap machine instead of the former CPAP machine and the Bipap has brought my Events per hour down from 18 to 7-8. But I remain very tired, no, exhausted, all day long when I am supposed to be awake and full of energy. I usually take 2 mg Lunesta sleep med at night to insure a good nights sleep. Please answer if you have any experience that would lead you to believe that my continuing day time sleepiness and exhaustion could be a side effect of continuing taking the Lunesta. Thanks.