The wedge was a wonderful surprise. We were very skeptical that a wedge of foam would prove itself worthy of the cost, but it was certainly worth every dollar. It enhanced one of our favorite positions by alleviating lower back stress and positioning us correctly to rotate into a new position. Very interesting and fun! The upside of the wedge is that it transforms into a reading wedge should the mother-in-law stop by unexpected, or into a Hot Wheels ramp, should the young children ask what it is