There is no such thing as a preferred herbal remedy for difficulty sleeping. Difficulty in sleeping, usually referred to as insomnia in Chinese medicine, can be characterized by liver fire disturbing the heart, phlegm heat disturbing the heart, deficiency of the heart and spleen (weakness of the heart and spleen), and failure of the heart and kidneys to communicate with each other (heart fire and kidney yin deficiency, and dysfunction of the physiological functions of the heart and the kidneys), which need to be diagnosed and treated by choosing the appropriate proprietary Chinese medicines, and cannot be generalized. 1. Liver fire disturbing the heart: Difficulty in falling asleep accompanied by irritability and irritability, dizziness, dry mouth and bitter taste in the mouth, and difficulty in falling asleep when there are mood swings, etc. Usually, Gentian Liver Pills can be used for treatment. 2. Phlegm-heat disturbing the heart: the symptoms of difficulty in falling asleep, accompanied by chest tightness, heavy head, dizziness, yellow and greasy tongue, etc., can be used to clear heat and phlegm effect of clearing lungs and phlegm pills. 3. Deficiency of the heart and the spleen: symptoms such as difficulty in sleeping with memory loss, loss of appetite, dreaming, fatigue, pallor, unformed stools, can be treated with Spleen Pills. 4. Lack of communication between the heart and kidney: Difficulty in sleeping accompanied by tinnitus, lumbar and knee soreness, sweating after falling asleep, and sweaty palms, can be treated with Liouweidihuang Pill (六味地黄丸) and Jiaotai Pill (交泰丸). All of the above drugs should be used under the guidance of a doctor, do not take without authorization, and during the medication should be careful to avoid the intake of spicy and stimulating food.