What are the benefits to the fetus of pregnant women sleeping on their left side? For pregnant women, sleep is crucial. Good sleep is very important for both the mother\’s body and the health of the fetus. However, in addition to sleep duration, sleep quality is also important. Generally speaking, doctors and experts recommend pregnant women to sleep on their left side because of its many benefits to the fetus. So, what are the benefits of sleeping on the left side for pregnant women? The following is a detailed explanation from four aspects. 1. Improve fetal blood circulation. From a biological point of view, fetal development needs adequate