The Millennium Sleep Pillow by Tempur is designed to resemble the shape of a neck. Thanks to this design, it provides optimal support for the cervical spine and offers additional space for the shoulder. The viscoelastic Tempur material ensures high pressure relief. The elevated side surfaces are ideal for side sleeping, while the flat area in the center is the right choice for lying on your back. On the shoulder side, the pillow has a sloping shape that allows the shoulder to find a bit of space underneath the pillow. You may need a slightly longer adjustment period with this pillow. To determine your optimal pillow size, measure the length from your neck to the end of your shoulder. This will give you the required height at the front.