Our 2010
EggCamper was modified by the original owners to run two CPAP machines through the night while
boondocking. They installed two extra (3 total) 12V deep-cycle batteries (Interstate) on the tongue, ran a pair of dedicated marine-grade, 8 gauge tinned wires back to a 1000 watt pure sine-wave inverter near the bed, then just plugged both CPAP machines into the inverter. They said, all told, it was expensive but performed exactly like they had hoped.