Lumbar support pillows help to ease back pain and offer support--allowing the spine to remain in a natural position, when sitting or lying on the back. Support pillows are available in several forms, including some with memory foam. The shape of the pillow rests along the inner curve of the spine to offer constant support, while cradling the lower back. The pillows are lightweight for easy travel. Sitting for long periods without lumbar support may cause the muscles to tense and…