There are many benefits of drinking milk at night, specifically the following points: First, it can improve sleep and treat insomnia. Milk contains sedative and hypnotic substances, which can make people tired and can fall asleep well. The second point is that it is good for strengthening the immunity of the human body. Milk can enhance the immunity of the human body because it contains high-quality protein, which can promote the nutritional integrity of the human body and can inhibit the invasion of dangerous substances. The third point is that it is good for the absorption of calcium. For pre-menopausal women, drinking milk can prevent excessive loss of calcium that can induce osteoporosis. Overall, milk has many benefits for the human body. Personally, if you want to improve your sleep, it is best to drink warm milk at night before going to bed. But pay attention to dental cleaning, especially for children, to avoid tooth decay.