The Boppy
With my first baby, this was the only nursing support pillow that I'd tried and I loved it (and still do). It is simply a "U" shaped pillow that hugs you around your waist and supports your baby to make nursing more comfortable for you and him or her. It can be purchased for around $25-$30. You can also buy covers that zip over it for anywhere from $10-25 a piece. These come in handy as spit up and leaky diapers (yuck!) often soil your boppy while feeding your baby and it's much easier to remove these and wash them rather than having to wash the entire pillow each time. The pillow itself is, however, machine washable, should you need to do so.