With the summer heat wave sticking around NYC, no one needed to tell me to put my air conditioning on before bed. However, now I have an excuse to blast the temperatures even cooler. A study conducted by the National Institute of Health Clinical Center (that I read about on Women’s Health The Scoop) found that sleeping in a colder room (to the tune of 66 degrees) burned more calories while they slept than those who slept in a 75 degree room. Researchers suspect that the extra 7% of calories torched in the cold room sleepers were the body’s effort to keep internal temps at 98.6 degrees. This could lead to an extra 100 calories burned after 24 hours of sleep, the little extra leeway you might need in the season of ice cream sundaes and barbecues.