Orthopedic Pillows provide specific support for the lower cervical spine. The whole shoulder and neck area is supported. The pillow's unique tapering between the shoulder and spine fills the space between them and gently moves the spine into an anatomically correct position. The slight streching feeling in the neck and spine can initially feel unusual as the body needs a little time (2 to 14 nights) to re-adjust to a a natural healthy sleep and become used to lying on an original, anatomically shaped SISSEL Orthopedic Pillow.