I've been looking for a lightweight camping mat for bike packing and keeping a vague eye on what's popping up on eBay, when I saw this item - 284442797344
It's clearly got blown baffles at one end, that are being sold as a pillow!
Pictures also show a possible repair by the valve that isn't mentioned in the description.
Bizarrely, it's got 4 bids! Unless someone's planning on doing what I'd do, which is chop the duff end off and glue a new seam, but I still wouldn't pay the current bid for it.