The AC window unit is on my side of the bed and blows directly on my feet, which makes them a little too cold. And after 24 years, switching sides is not an option. On the other hand, like many of you, I can't stand sheets/covers on my feet.

But at the Costco the other day, I was looking at the stack of empty boxes by the checkout and noticed that some of them really just consist of four corners with no sides. So I brought one home and am trying it out as a "tent" frame for the sheets. I know that there are metal contraptions you can buy, but the one of those that someone gave me is not for a deep mattress and wouldn't work. Anyway, this one was free and the only modification I'm thinking of is attaching something soft like foam rubber on the edges.