Pregnancy brings about lot of hormonal, physical and physiological changes in your body. So all these changes cause sleeping disturbances which is very distressing for the women, your prepregnancy sleeping posture may not be comfortable for you in the sleeping status. So an ideal sleeping position would be, it should be comfortable to the pregnant woman, as well as it shouldn’t interfere with thee blood supply of the developing fetus. In the first trimester of pregnancy when the uterus is a pelvic organ, it has not been obvious in the abdomen, then you can sleep in whatever position you like like you can sleep in the supine position, that is on your back or you can sleep in the prone position or sideways, bit only here you should care that because of excess of nausea and vomiting and increased frequency of urination, you should take less fluids after 8 pm, less aerated drinks, you should have a little light dinner, as well as very oily, spicy food but you can sleep in whatever position that you are comfortable. In the second trimester and the third trimester of pregnancy when the protrusion is more, the backache is more. That is a real time of challenge for the pregnant women so in that situation it is better to sleep in the sides, more on the left, but you can sleep on the right side also, when you are sleeping on the sideways position, your baby is getting better nutrition and oxygen supply because the pregnant uterus is shifted towards that particular side and your pregnant uterus doesn’t compress the abdominal aorta and the inferior vena cava. So the baby gets a better oxygen. To keep the position a little comfortable, you can keep a long pillow by the side of your tummy to support your pregnant uterus as well as you can keep your knees slightly bent and slightly flexed with a soft pillow in between. In the 2nd and the 3rd trimester the reflex esophagitis or the hyperacidity is also a common problem. To get rid of this, you can use two pillows below your shoulder and neck and you should sleep a little propped up and this will reduce the incidence of reflex esophagitis as well as you should walk 15 to 20 minutes after your meal and this will reduce your problem and your sleep will also be proper.