Your Cpap normally runs off of 110VAC. You should have 110VAC outlets in the bedroom. I'm assuming your 5th has batteries and a converter to supply 110VAC?
You can buy adapters to run them off ov 12VDC from Amazon, but there's no reason for you to do that.
And no, the USB outlets do not have enough power. Your power supply for the Cpap should use 95 to 100 watts.
Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.
