Hitsuji no Iranai Makura Premium Includes all accessories Used only once. I considered keeping it, but I'm selling it while it's still in good condition to put towards a new pillow. My impression after using it is that it's an incredibly soft pillow. To compare, it's about as soft as a child's slime toy. The "Premium" is from the Hitsuji series. It combines the best features of "Shigoku" and "Gokuyawa"! You can change the height of the pillow to 8cm or 6.5cm by flipping it over. The TPE material of the main body has a durability of over 10 years. ■ A new sensation of softness It uses TPE (thermoplastic elastomer) throughout, which is characterized by its softness and resilience. It achieves a squishy feel as if you were floating in water. The excellent resilience of TPE (thermoplastic elastomer) makes the pillow less likely to sag, and the initial feeling of placing your head on it lasts a long time. ■ Special structure The uniquely developed triangular lattice structure disperses the pressure on the pillow and moderately supports the neck and shoulders. The soft material quickly conforms to the shape of the head. It supports the head while dispersing pressure, supporting comfortable sleep. It adopts a 3D wave shape with a gentle depression in the center. It makes it easy to turn over and moderately supports the height of the shoulders when lying on your side. ■ Emphasis on cleanliness! The triangular lattice structure has a hollow interior, achieving breathability. It releases heat that tends to accumulate in the pillow. TPE (thermoplastic elastomer) contains activated carbon with deodorizing effects (*1). Furthermore, the main body can be washed, so you can easily care for it if you are concerned about sweat, dirt, or odors! You can use it cleanly. *1: Survey by the Tokyo Metropolitan Industrial Technology Research Center Immediate purchase without comments is OK. Price includes shipping. If you have any other questions, please feel free to contact me.