The Solar Performance Pillow's flexible pillow pad slides between your body and the mattress and won't create pressure against the sensitive areas of your face, ear and neck. The cool to touch cover deflects heat and wicks away moisture, helping your body's natural nighttime temperature drop for better, deeper sleep. The Solar Performance Pillow has a unique dual construction design with a hybrid blend fill. One side features our React crown that contours to you while the other has our breathable and soft Boost foam blend providing smooth motion performance. The Air-X ventilated panel increases air flow and features a filter fabric which prevents allergens and dander from entering the pillow.