If you want to lose weight, try to get more sleep each night. In a study published last week in the journal JAMA Internal Medicine, researchers studied 80 obese adults who slept less than six and a half hours each night. They counseled the subjects about how to get better sleep and recommended they spend a total 8.5 hours in bed each night, aiming to get about one more hour of sleep. The subjects kept their diets and exercise the same. The researchers found that just by sleeping an extra hour each night, the subjects ate 270 fewer calories each day. They estimated that if people routinely slept an hour more each night, those 270 fewer calories each day could add up to a loss of 26 pounds over 3 years.