Best and Worst Foods for Sleep MILK Best: You may have fond memories of your mother or grandmother making you a glass of warm milk to help you fall asleep. This may not be just an old wives’ tale. Milk contains the amino acid tryptophan, a precursor to the brain chemical serotonin. Previous Next 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2017-09-22 admin Share ! tweet