This article shows some of the hilarious positions people get into when they try to catch some winks during an overnight layover.  At least most lounges have comfortable couches you can stretch out on!  My personal favourite is the guy who had the foresight to bring a hammock, but also check out the “camper” who is apparently happy to see someone!

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I’ve had to spend a few nights in airports, usually Auckland as connections between Australia and the Pacific Islands are terrible but at least they do have sofas where you can stretch out.