Drinking black tea if you can not sleep, you can improve the following methods: 1, you can drink about 250ml of warm milk before going to bed, milk has the effect of soothing the nerves, improve sleep, regulate the function of plant nervous disorders, to help sleep. 2, you can also drink a certain amount of concentrated sugar, concentrated honey water, through the principle of osmotic diuresis, to accelerate the tea polyphenols and theophylline in the tea rapidly through the urine excluded. 3, you can also take certain medications to improve and regulate sleep, such as oral melatonin, vitamin B6 tablets, which can play a sedative and regulating. Outside the body, thus alleviating the situation of drinking black tea can not sleep. 3, you can also take certain medications to play a role in improving and regulating sleep, such as oral melatonin, vitamin B6 tablets, can play a sedative tranquillizer, effective help to sleep, and there is no addictive effect. In addition, you can also take eszopiclone tablets, but to take a small amount, short-term use, if a large number of long-term use of eszopiclone, will cause to drug dependence and addiction.