Cervical Memory Foam Pillow - How to Use: Cervical memory foam pillows have noise-cancelling features. Due to its dense foam structure, it absorbs and reduces the spread of noise, creating a more peaceful sleeping environment for users. This is especially important for people who are susceptible to interference from ambient noise. A unique type of pillow made for neck pain relief is the cervical memory foam pillow. Place the pillow on the bed with the contour facing up for best results. Place your head and neck inside the curved section of the pillow, so that it supports your natural neck curvature and cradles your head. The memory foam will conform to the contours of your body to provide customized support. When using an Elviros pillow, it is critical to ensure that your neck is properly positioned with respect to your spine for optimal neck pain relief.