Perhaps the thing you need most in the weeks leading up to delivery is also the thing you simply can’t get: a good night’s sleep, reports the American Council on Science and Health.
Different aches and pains, particularly backaches, can also contribute to a restless night. If you awake and find you’ve slept on your back, chances are you will feel the pain and pressure in your lower back. Back sleeping can also cause the weight of your uterus to compress on a major blood vessel, the vena cava, which can leave you nauseated and short of breath. This is why doctors recommend sleeping on your left (most preferred) or right side.