Soft is a naturerubber pillow with natural shoulder recess. Tilts the head which optimally relaxes youre muscles and nerves. An ingenious zone system allows for the tilting of the head. This will support the cervical spine in the natural position. Nerves relax and the airway is free. When lying on the back the head comes to lie in a stable position which is good for the neck area. Youre head never falls sideways when you are asleep.