I’m a bit lost, forgive me, why? Do you have a lot of loose items in your bed that pose a threat to the air bags? Your bed seems clean and uncluttered, so I’m not sure why this is needed.
I do really like your catcher that you have in case the jaws fail on the fifth wheel. That’s awesome!
It is clean because I have just cleaned it out and reinstalled the rubber liner. When we go camping we haul firewood. Is easy to let a piece of firewood come in contact with a bag. Also when I load shovels, rakes and other pointy tools and sliding them into the bed it has come close to hitting a back. Just a pound of cure.