I purchased this pillow in 2024 and have used it a few times before storing it clean. Purchase Price: ¥13,200 Here is a link to the official website: https://shop.nishikawa1566.com/shop/g/gEH07112012L/ Product Description: ● The filling is made of mini-pipes that provide good breathability, moderate stability, and a gentle fit. ● The indentation in the center of the pillow gently fits the back of the head, maintaining the natural curve from the neck to the back of the head. ● The height can be adjusted with the two-part urethane sheet on the neck and back of the head. ● Both sides have gussets to ensure sufficient height for side sleeping. This stabilizes the back of the head when sleeping on your side. ● The height can be finely adjusted by adding or removing the filling from the four adjustment openings. ● Machine washable. *Please remove the adjustment sheets and use a laundry net when washing. *Drum-type washing machines may not be suitable.