I've read the "fat is contagious" study, and all I can say is that this is junk science. The gap between the journalistic quality of the New England Journal of Medicine and Weekly World News has narrowed significantly, and not because Weekly World News's journalistic integrity has improved.
I have a variation of the above "stay cool" practice which admittedly is not the most energy-efficient. This practice has me running the fans all night to the point where the temperature in my room dips to about 58 degrees F (14 degrees C ) and I'm curled up underneath the quilt. And then, right before I leave, I shut all the windows and close the door. It works.