This is a Brain Sleep pillow. I am selling it because I purchased another one. I bought it in 2023 and used it almost every day. I think it may be worn out, but according to the official instructions, the wear and tear may be somewhat improved. I will include three pillow covers that I used. I will ship it in the red bag that it came in when I bought it. Size: Standard 7-gradation type (old type) Pillow covers: Organic Sleep x 2, Active Air x 1 If you have any questions, please feel free to ask in the comments section. I will wash the pillow before shipping, so it may take some time to ship depending on the timing. Please understand that this is not new before you purchase it.