According to webmd.com, if insomnia is a problem, maybe your bedroom is too hot or too cold. Both can affect sleep. The below was originally published by By Kathleen Doheny on webmd.com. Air Temperature Affects Your Sleep Experts now agree that the temperature of your sleeping area directly relates to your comfort level and impacts how well and how long you snooze. Based on research from H. Craig Heller, PhD, professor of biology at Stanford University, who wrote a chapter on