I also was diagnosed last year at age 45 (female). I used CPAP for 9 months without improvement. My neurologist put me on Nuvigil 200 mg and sleep Dr titrated me to BI-PAP last week. I sometimes cut my pills in half to cut down on side effects. The Drs hope my new BI-PAP will decrease my need for Nuvigil soon. It keeps me awake during the day but I'm not comfortable. I think of it like a temporary trade off.