Yam has the effects of strengthening the spleen, tonifying the lungs, strengthening the kidney and benefiting the essence, and is not used in the treatment of insomnia. Therefore, yam has no effect or influence on sleep. Yam is mainly used for spleen deficiency and diarrhea, prolonged loose stools, cough due to fatigue, polyphagia, polyuria, emaciation, spermatorrhea, dyspareunia, frequent urination and other conditions. However, it should be noted that it is forbidden for people who are full of dampness (too much dampness leading to fullness and discomfort in the spleen and stomach) or who have solid evils or stagnation. Therefore, it is not recommended to rely on yam to treat insomnia. It is recommended that insomnia patients should seek medical treatment in time, after the doctor’s diagnosis and treatment, follow the doctor’s instructions for the rational use of traditional Chinese medicine or the use of other traditional Chinese medicine, do not blindly take medication, so as to avoid the condition.