I accidentally bought too many and am selling the extras. I purchased these on Rakuten for ¥1990 each. This is a set of 3, but individual sales are also possible. (¥1950 per sheet for individual sales) Shipping is included, so I think it's a great deal. They look thin at first glance, but after washing once, they become fluffy and warm to the touch, which feels very nice. I feel like the warmth lasts until morning. Made of 100% cotton, so there's no static electricity, and I can use them with peace of mind for my children with sensitive skin. They don't slip like a fitted sheet, and they dry quickly even after washing, which is helpful. The 8th photo shows it on my 10cm thick mattress. The 9th photo is the item for sale. Unopened. (I haven't inspected it in particular because the other items that arrived together were good quality. Please understand.) Please be sure to check my profile as well. #100%cotton #WarmBedding #MattressCover #FittedSheet #Flannel #Mattress #FittedSheet #Sheets #Bedding