There is no optimal sleeping position in the case of fetal malposition, and the left lateral position is recommended. The left side of the pregnancy is the most favorable position for both the mother and the fetus. Sleeping on the left side does not burden the heart and can effectively correct conditions such as rightward rotation of the uterus. If a pregnant woman has fetal malposition, sleeping on the left side can be improved. Women in late pregnancy are prone to swelling of the lower limbs, if the left lateral sleeping position can help relieve the swelling of the lower limbs, which can help alleviate the situation of fetal malposition. It can also promote blood circulation in the uterus and the placenta, which is conducive to the supply of oxygen and nutrients to the fetus, and reduce fetal hypoxia.