Stampede of air mattresses in Denver a few days ago.
Full video: https://www.youtube.com/watch?v=a7CSbnwavJM
edit:
"Dozens of Coloradans had set air mattresses on a sprawling lawn in preparation for an outdoors movie night Saturday, unaware that mattress anchors would have come in handy.""
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And their response.
Those look perfect for landsailing. I can't wait to see someone foiling with a mattress.
What happens in a black hole stays in a black hole.