Achieving deep restful sleep night after night is one of the most important things a person can do to maintain long term mental and physical health. Millions of people have trouble sleeping and, as a result, turn to medications and or hormonal preparations for help. While these may help achieve sleep, they may carry with them certain risks or side effects. L-tryptophan is a natural amino acid found in most high protein foods. At high enough levels, L-tryptophan can naturally increase brain chemical levels like serotonin and melatonin which influence sleep. Over time, it may help to influence more regular and normal sleep cycles. Unlike many over-the-counter sleep medications, your body metabolizes L-tryptophan much the same as food which may reduce the likelihood of feeling groggy and sluggish the next morning. All Mason Natural products are produced in a GMP certified facility and laboratory tested for purity.