There are many reasons for not sleeping soundly and waking up easily at night, such as mental stress, too much sleep during the day, poor sleep environment, certain diseases such as depression, and bad life habits such as not eating in moderation, which can lead to shallow sleep and difficulty in getting into a deep sleep. Waking up easily at night and poor sleep for a long period of time will cause exhaustion and fatigue, affecting work and study. 1. Mental factors: such as mental stress, more negative emotions, too much anxiety, more thoughts, psychological depression, will affect sleep. 2. Biological clock disorders: such as long sleep during the day, will affect the night sleep, easy to wake up, and in the long run easy to sleep upside down. 3. Environmental factors: such as sleeping environment is too noisy, indoor temperature is too high or too low, indoor light is too bright and so on. 4. Disease factors: such as depression, anxiety, etc., can lead to shallow sleep and early waking. Organic diseases such as anemia, hyperthyroidism, gastric ulcer, coronary heart disease, etc., because of physical discomfort, can also affect sleep. 5. Bad habits: such as overeating before going to bed to increase the burden on the gastrointestinal tract, drinking coffee or strong tea and other excitations of the central nervous system, etc., will affect sleep. Daily to establish a good, regular work and rest habits, appropriate exercise, pay attention to relieve stress, in order to improve the quality of sleep.