I could not tolerate a CPAP. I have had great success with a CUSTOM mouthpiece like these types in link. My paramedic training likes the concept of the mouthguard. It fixes the root cause problem by performing a jaw thrust maneuver and opens the airway. A CPAP just RAMS air past the restriction.
It took many months to get comfortable, gradually increasing the forward movement of the lower jaw.
Best part, no electricity, no cords, no hoses.
I found a local dentist who specialized in these appliances to custom fit me.
http://www.dentalsleepapnea.com/Oral_Appliance_Therapy.htm
I also tried a $50 TV mouthpiece, same premise but not even close for comfort compared to full custom.