First, drinking six walnut drinks at night is not helpful to sleep, because it is just a drink, containing a lot of sugar and other substances, and does not contain beneficial ingredients that help sleep;

Second, milk is good for sleep. You can drink some milk at night. According to the research of American and British scientists, milk contains two hypnotic substances that people didn't know in the past, one of which is tryptophan synthesized by serotonin, and the other is a substance with similar anesthetic and sedative effects. Because of their function, drinking a glass of milk at night is good for sleep.