Sleeping during pregnancy is mainly based on comfort, there is no special requirement for sleeping position in the early stage of pregnancy, and in the middle and late stages of pregnancy, you have to sleep on the left side of the bed. 1. Early pregnancy, early pregnancy when the embryo is just developing, the uterus is not obvious, at this time there is no special requirements for pregnant women to sleep, pregnant women can choose according to their own preferences for a comfortable sleeping position, lying on their backs or prone can be, but do not lie on their backs to sleep, to prevent compression of the abdomen. 2. late pregnancy, late pregnancy with the development of the fetus uterus gradually increased, generally recommended that pregnant women try to choose the left side of the lying position to rest, can alleviate the increased uterine compression, is conducive to the pelvic cavity and lower limb blood circulation, increase the blood supply to the fetus. In addition to the sleeping position, pregnant women should also ensure adequate rest time, avoid staying up late at night, you can rest properly during the day for half an hour to an hour or so, to ensure that the day’s sleep time of not less than 8 hours is appropriate.