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We did some digging online and it looks like these are pretty hard to track down information for. There are several for sale on Amazon, but we were unable to find a website for the brand to find out more info. We were able to find this brand, KAMUI Outdoor, which may be what you are looking for. In terms of 'neoprene', we're not familiar with a 'neoprene' air mattress, were you referencing the open-cell foam on the inside by chance?
Hopefully this helps!
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