Maternity pillows are made with pregnant women in mind, and can prevent many of the problems that come along with pregnancy and sleeping. Pregnant women can experience lots of trouble sleeping and being comfortable during their pregnancy. Pregnancy pillows also can help prevent hip pain, sciatica and carpal tunnel syndrome. A maternity pillow might be just what you need if you're pregnant or plan to be pregnant. Factors to consider when choosing the best pregnancy pillow for you is the filling and length of the pregnancy pillow. Look for a maternity pillow that conforms and hugs your body and baby bump but doesn't loose shape over time.