Abstract: A system having three separate pillows with a primary spinal pillow that sits vertically against the back portion of a chair. This spinal pillow has a characteristic curve that extends laterally across the pillow such that the apex of the curve runs vertically through the center of the pillow. Two other pillows, the thoracic and lumbar pillows fit between the spinal pillow and the back portion of the chair at an adjustable height to suit the user. These pillows enhance overall posture control during sitting by encouraging users to center themselves on the spinal pillow. Enhanced control of the muscles, joints and ligaments provides a more comfortable and correct sitting posture that decreases spinal stresses that can cause pain and discomfort. Alternatively the spinal pillow may be used by itself.