There are a few things you can do to stay cool sleeping in a car. First, make sure the car is cooled down. Second, make sure you are comfortable. Third, keep your eyes closed and avoid looking out the window. Fourth, try to relax and let your mind wander. Fifth, avoid using electronics or talking on the phone while you sleep. Sixth, if you experience any problems sleeping in a car, call a tow truck or go to a hospital.
