Benefits of the Elviros Memory Foam Neck Pillow: The key feature of a sleep memory foam neck pillow is its contoured shape. Memory foam neck pillows are typically shaped with a dip in the center and raised sides to provide support for the natural curvature of the neck. This contour allows the pillow to promote proper spinal alignment by aligning the head, neck and shoulders, reducing strain and pressure on muscles and joints. Buy it now online.