At kinokoto, we have made a Sumilab pillowcase with the aim of increasing the time to have a good night's sleep as much as possible. It is said that you toss and turn during sleep on average around 20 times per night. Each time, the pillow and hair and skin are rubbed. The fabric is not a chemical fiber for the purpose of caring for hair and skin, but a natural fiber cotton that is familiar with moisture absorption and desorption. By using organic cotton yarn dyed with ceramic charcoal instead of just cotton, you can feel the soft touch just by covering it on the pillow. In order to create a sleeping environment, the accumulation of comfort creates a good environment. The pillowcase, which can absorb night sweats well even in the hot season and has a deodorizing function, is perfect for comfortable layering. The size is for 43×63, which is popular among pillows. It is an important piece that invites you to a comfortable sleep. * Pillows are not included in the product.