Seeking the ultimate in gentle sleep comfort The natural warmth of cotton 100% cotton, double gauze using the traditional "wa-zarashi" method King size Color: Ash Blue Retail price: ¥8,265 Brand new, unopened. Perfect for those with atopic dermatitis or sensitive skin ♡ Besides this white color, "gray" and "white" are also available. If you purchase multiple items, a discount is possible, so please comment! (1) Traditional "Wa-zarashi" method, gentle on the fabric The "wa-zarashi" method gently cleans the fabric for 3-4 days without stretching or pulling it. This process allows for thorough treatment of each individual cotton fiber, effectively removing various impurities. Because it doesn't stress the cotton fibers, it creates a fluffy, soft, pure cotton gauze that is unlike typical fabrics. (2) Gentle on sensitive skin: Certified by Oeko-Tex Standard 100 and recommended by the Japan Atopic Dermatitis Association Oeko-Tex Standard 100 is a globally unified testing and certification system applied to all stages of textile manufacturing, including raw materials, with the aim of eliminating the effects of harmful substances. (3) Safe and reliable, made in Japan & direct from our own factory Using high-quality cotton yarn, we perform weaving, dyeing, and sewing in Japan. We deliver products directly to customers, with thorough quality control at the Sleep Tailor's own sewing factory in Hamamatsu, Shizuoka Prefecture. (4) Because you use it every day, we are committed to comfort "Wa-zarashi" bedding covers are not only comfortable to sleep on but also designed for ease of use. They are designed to stay in place and provide comfort throughout the night, and we have paid close attention to the details to make them easy to put on and take off during care.