 Dr. Kwame Okoto with Kaiser Permanente says there are ways to turn off the AC and beat the heat while you sleep. First, fire up the fan. That's a great way to keep your body cool overnight. If you've got windows in your bedroom, it may be a good idea also to open those up and try to get some more airflow as well. Next, get the mist going. If you've got a fan in your house, you can put a bowl of ice, and as that ice melts, it's going to be blowing cool mist right onto you. Finally, sleep in and on cotton.