This is the Emma Pillow Premium from Emma Sleep. I purchased it from the official Emma Sleep online shop. I used it for about two weeks with a cover, but it didn't suit me, so I'm selling it. The inside is divided into three layers, and you can adjust the height by removing layers. Retail price: 25,960 yen Size: 63 x 43 x 12 cm Pillow filling: Urethane foam Pillow cover: 99% polyester, 1% elastane -----Quoted from the official website---- You can't fall into a deep sleep if your body temperature is too high. The Emma Pillow Premium incorporates "graphite particles" into the pillow, which have excellent cooling and heat dissipation effects. This allows for optimal temperature regulation throughout the night, leading to longer and deeper sleep. You can find the perfect firmness and height for you by freely combining the three layers. It is recommended to use all three layers for side sleepers, 2-3 layers for back sleepers, and 1 layer for stomach sleepers.