Aside from what I wore on the plane (knock off rose pattern doc martins, leggings, a black shirt and a long sleeve black T-shirt) this was perfect. (My phone and my wallet tucked into the end zip pocket as I went through security.)

CENTER SECTION
Bottom strata:
First aid pouch
flips
standard tiny travel towel

Clothes strata:
black leggings
stripe shirt
white Ably shirt
socks, undies and jammies in packing cube

On top:
Tom Bihn sack with plane stuff (earbuds, spare battery, etc)

RIGHT POCKET
CPAP
Power supply
Power strip (with USB ports and a several ft extension cord)
USB cords for phone and battery
Mask
Lewis N Clark fold up ultralight backpack

LEFT POCKET
Goes Everywhere With Me pouch
Bubba watertight bottle
Klean Kanteen small insulated bottle
Snacks