Did you know that the quality of your sleep affects your weight? Lack of sleep not only causes you to have dark circles under eyes but weight gain too. If you have anyone in your family that suffers from sleep apnea then you know what I am talking about.
Constantly waking up during the night forces the body to dump sugar into the blood stream to get the body up. The sugar is coming from recently digested food. That sugar dump actually causes the body to gain weight by not releasing energy stored in the fat cells. The body is now constanly using recently digested food as an energy source and will leave stored fat alone. As long as there is food somewhere in the body, fat will not be reduced. The sugar dump can also lead to diabetes.
If you are overweight make sure that your sleep pattern is not the cause of your weight problem.