I have a 2650, so the breaker box and wiring consolidation is under foot of bed. I use a CPAP and have the 12V power supply. I have a fantastic fan in bedroom, I tapped into the wire that provides power for the fan (but originates under bed in same box as water tank, pump etc) and snaked the wire for my 12v female plug up out of the box and layed it along side the bed.
I almost always run the CPAP and the fantastic fan at the same time and have had no problems. Ive had same CPAP, power supply etc for 2+ years.