As your pregnancy progresses, you may find that sleep is getting more and more elusive. The weight of the baby, your changing shape, and shifting joints makes it hard to find a comfortable sleeping position. These days, I find that sleeping on the side is the only option and that an extra pillow is a necessity. At BabyCenter, you can find a wide range of maternity pillows (sometimes called body pillow). Aside from acting as a kind of wedge under your belly, they're also longer than your normal head pillow and thus provide extra support for the shoulders and hips.

Practical as I am, though, I find Todays Mom Cozy Comfort Pregnancy Pillow a good buy. Once the baby is born, the pillow can double as a nursing pillow that provides maximum support to mom's back, arms and shoulders while feeding the baby: