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Join Date: Feb 2001
Location: Berkeley, CA USA
Programs: Piggly Wiggly "Shop the Pig!" Preferred Shopper
Posts: 57,074
Like the OP, I need cool temps to sleep soundly. I'd set it at 17 C if I could, but I realize that's not what most people want. I've discovered on a few flights over the years that on some planes it is significantly cooler right next to an emergency door/window. I'm not sure what exactly accounts for that, but the result is a happy one from my perspective.