Insomnia is the most common type of sleep disorder, mainly manifested as difficulty in falling asleep or staying asleep, etc. Dreaminess is mostly associated with insufficient sleep depth or poor sleep quality. Insomnia and dreaminess in pregnant women refers to the inability of mothers-to-be to fall asleep peacefully during pregnancy and the symptoms of insomnia. Common reasons are as follows: 1. Hormonal changes in the body: hormonal changes in the body after pregnancy, estrogen and progesterone level adjustment, resulting in emotional tension and instability of pregnant women, at this time generally prone to phlegm-heat internal disturbance, yin deficiency and fire, liver depression and fire, the tolerance of stress is lower than before, prone to mood depression, resulting in insomnia; 2. Physiological changes: pregnancy vomiting may occur during pregnancy, serious cases will also occur at night With the gradual lengthening of pregnancy, the uterus of pregnant women gradually increases, the symptoms of frequent urination appear, the number of nocturnal urination increases, or cramps easily occur in the middle of the night when the palms of the feet are down, seriously affecting the quality of sleep, and even wake up and can not continue to sleep; 3, bad habits: pillow discomfort or incorrect sleeping posture, poor nutrition causes calcium deficiency causing lower limb cramps, drinking coffee, tea, beverages, too full or too hungry, and 4, family genetic factors: the incidence of insomnia in people with a family history of insomnia is three times higher than those without a family history, and some pregnant women already have insomnia symptoms before pregnancy; 5, stress and life events: changes in the sleep environment or some unexpected events lead to mood swings, or have not yet adapted to the state of life of pregnant women. 6, food allergies: women during pregnancy because of changes in hormone levels, pregnant women often want to eat this food for a while and then want to eat that food, allergies are relatively easy to ignore the cause of insomnia. To sum up, insomnia and dreaminess is the final result of a variety of complex factors, including physiological, psychological, environmental and other factors of change. Long-term insomnia and dreaminess will seriously affect the normal growth of pregnant women and fetuses, and should be adjusted early.