Your bed and your scale may have more in common than you think. The Sleep AHEAD study, led by Gary Foster, director of the Center for Obesity Research and Education at Temple, monitored the effects of a weight loss program on people with sleep apnea. "The greater the amount of weight loss, the greater the improvement," said Foster. "So the people who are most likely to benefit from weight loss in terms of their sleep apnea, are those with more severe forms of sleep apnea and those who lose the most weight."