Losing weight can directly aid in improving sleep quality among obese or overweight people. Sleep quality was meaningfully associated with weight loss, either from changes in diet or a healthy diet combined with exercise. Sleep quality improvement was also observed with a loss in belly fat. With an average loss of 15 pounds and 15% belly fat, sleep scores improved by 20%.
Chronic sleep disruptions can elevate the risk of heart attack, high blood pressure, irregular heartbeats, and stroke.
American Heart Association, November 2012
If you are overweight, especially if carrying more of that weight in your midsection, and suffer sleep disturbances then you are increasing your risk for cardiovascular killers. Get yourself on healthy program to lose weight and improve your health. Check with a doctor skilled in these types of issues who can help you along the way.