Sunadeca First 6-Layer Gauze Pillow Melty Retail Price: ¥2,508 Purchased at an Akachan Honpo store. I bought it before giving birth and used it for about six months, only during naptime. I think it hasn't lost its shape much. Please understand that this is a used item before purchasing. Product Description (from the website): The surface is made of 6-layer gauze material, and the back uses cool-touch mesh. The filling uses air pipes that are breathable, resistant to flattening, and produce little dust. This pillow is designed to provide a comfortable sleep for babies. ●Recommended Points 1. Low height that doesn't put pressure on the neck 2. The indentation gently cradles the head 3. 6-layer gauze absorbs sweat well 4. Air pipes prevent stuffiness 5. Cool-touch back for hot weather ●Materials: [Surface] 100% cotton [Back] 55% polyester, 45% cotton [Filling] Polyethylene ●Size (approx. cm): 20 x 31 x 5 ●Care: Hand wash