The Hydraluxe Gel Dual-Sided Pillow doubles your sleep quality with two unique cooling technologies on each side. The innovative, heat transfer system provides a continuous cooling effect. One side features Phase Change Material (PCM) while the other has a refreshing Hydraluxe Gel layer. The memory foam interior offers the superior, sink-into-comfort and self-adjusting support for which it’s renowned. This hybrid pillow offers a unique combination of innovative sleep technologies to ensure you have an outstanding sleep experience every night and awaken refreshed every day.