Have you ever wondered which position to sleep in during pregnancy? As your tummy gets bigger, sleeping on the back may get uncomfortable. Besides, there are other reasons you should not sleep flat on your back when pregnant. Sleeping on the back puts pressure on your spine and major blood vessels. This can lead to back pains for the mother and impaired blood circulation to the baby compromising his nutrition. Sleeping on the back can also cause dizziness, increase in blood pressure, snoring, increase in weight & sleep apnea. Most obstetricians recommend sleeping on your side, says Dr. Monika Bhatia, Gynaecologist at HCL Healthcare, Gurgaon. It improves blood flow to the baby, ultimately transferring more nutrients to the baby through the placenta. It also helps your kidneys to efficiently eliminate waste products and fluids from your body, which in turn reduces swelling in your ankles, feet and hands. Sleeping on one side all night can get uncomfortable and hence turning from side to side is the best strategy. Start training yourself to sleep on your sides early in pregnancy.