Nantong Hayes refers to the brand of Nanjing Tongrentang, which covers a variety of products, including licorice, lotus seeds, flowers and health tea. This kind of tea is advertised as having the function of nourishing sleep and is suitable for people who stay up late.
However, it needs to be clear that tea mainly plays an auxiliary role and cannot replace drugs. If you have sleep problems, you should seek the help of a professional doctor.