Living in Florida, you are expected to encounter a hurricane now and then. Even though it is not a direct hit, you still can get some damage. Even with tropical storm winds, you are likely to lose your power.
I lost power during one of these storms. Life wasn't too bad, but it was very hot without AC. It was hard to fall asleep in a 90F room.
After borrowing the fans from my computer and a some hurricane supply batteries, here is a way to get some relief. Originally, there were two fans. This provided enough cooling that I needed my comforter.