Feeling Hot Hot Hot

Our house is a 2 story and we have 2 heating/cooling units. The unit that cools the upstairs has decided that there is no need for cool air where we sleep, shower, use the computer, do crafts, etc. Lucky for us it's been unseasonably cool. It's only 79 degrees today. I'm dying people. Remember from your science class that heat rises. Sleeping upstairs lately has been like crawling into a hot bean burrito and trying to rest. The a/c man is coming today between 2 and 4 and hopefully this will be a quick fix. Pray that I don't melt.