Grunching, so I apologize if this has already been mentioned, but re: cool pillows & sheets--
In our dorms back in college we didn't have AC and so the first few weeks and last few weeks of the school year were unbearably hot and muggy. I would put a couple pillowcases in the mini fridge in our room during the day and it made for a lovely sleeping treat at night. I eventually did the same with my sheet. Everyone thought I was nuts but I convinced a couple friends to try it, and soon enough everyone in the dorm was doing it.
Still couldn't get laid tho