According to public health specialists from the Mayo Clinic Kenneth Berge, MD, milk and its derivatives can indeed be a solution in helping you sleep soundly. Milk is one of the best sources of tryptophan, a type of amino acid to change the body into two types of hormones that help you sleep ie melatonin and serotonin. Other foods that contain tryptophan are oats, bananas, poultry meat and beans.
To improve your chances of sleeping soundly, Kenneth Berge also recommend to eat light and healthy snacks with the largest composition of carbohydrates and less protein. The combination of high-carbohydrate, low-protein is thought to increase the ability of tryptophan to your brain, which helps it make more melatonin and serotonin.