What is the recommended position for sleeping during pregnancy to promote optimal blood flow?

Sleeping on the left side during pregnancy is recommended to promote optimal blood flow for both the mother and the developing fetus. This position enhances circulation by allowing for better venous return from the lower body to the heart, which is crucial as the uterus grows and can exert pressure on the major blood vessels, particularly the inferior vena cava.

The left side sleeping position also improves kidney function, which helps in facilitating the elimination of waste products and excess fluids, reducing swelling in the legs and feet. Additionally, this position can help reduce the risk of complications like supine hypotensive syndrome, where the pressure of the weight of the uterus on the back can lead to decreased blood flow and blood pressure when lying flat on the back.

While sleeping on the right side is also acceptable and may be comfortable for some, the left side is generally advocated for its cardiovascular benefits. Sleeping on the back and on the stomach are less advisable during the later stages of pregnancy due to the potential risks of obstructing blood flow and pressure on the abdomen, respectively.