White and greasy tongue coating and difficulty in sleeping are related to phlegm-dampness or cold-dampness (accumulation of cold and dampness in the body), and can be treated with medicines such as Ginseng-ling-White-Artemisia San or Radix Rehmanniae Chinensis Pill. 1. Ginseng Ling and Atractylodes Macrocephalae Powder: It is suitable for insomnia caused by the deficiency of lung, spleen and qi, loss of power of transportation and transportation, and the disturbance of dampness and turbidity upward to the clear orifices, and clinically accompanied by the symptoms of fullness in the stomach and epigastrium, fatigue and weakness (tiredness and fatigue), loose stools with little food (thinning of feces and not shaping of stools), and light tongue and greasy moss, etc. It has the effect of strengthening the spleen and the lungs (to enhance the functions of spleen and lungs), and drying up the dampness and resolving the phlegm (to dispel phlegm with the drugs of drying up dampness in the body). 2. Radix Rehmanniae Medica Pill: It is suitable for insomnia caused by deficiency and coldness in the middle Jiao and cold and dampness trapped in the upper Jiao, which is clinically accompanied by cold pain in the stomach and epigastrium, fear of cold and cold limbs (fear of cold, cold limbs), vomiting and diarrhea, and white greasy tongue, etc. It has the functions of warming the spleen and stomach, dispersing cold and removing dampness. The above symptoms should be consulted in time, under the guidance of a professional physician to identify the evidence of the treatment, so as to avoid delaying the condition.