I purchased this pad along with my Kingsdown bed. It's a single size! Purchased from IDC Otsuka Kagu. I used it by putting a mattress cover over the bed pad, and then attaching a pad sheet with elastic bands. There are no noticeable stains, dirt, or tears. I purchased it with my Kingsdown bed, and I believe it's thick and of very high quality. It can be used on both sides depending on the season: Summer mesh side (photos 1 & 2) Winter wool side (photos 3 & 4) The color is an easy-to-match ivory. A bed pad with a cool summer and warm winter wool material. Wool is a fiber that is cool in the summer and warm in the winter. It absorbs moisture when the humidity is high, keeping the surface dry and creating a comfortable sleeping environment. How about it? Size: 80x190 ◎ I have washed it in the hand wash mode with a neutral detergent, but due to the nature of the material, it has shrunk slightly, and this is the actual size. I didn't mind, but I think some people might, so please check the size carefully before purchasing. Surface fabric: 55% polyester, 45% cotton Lining: 100% cotton Filling: 100% wool Filling weight: 1.24 kilograms I am selling two of the same item. There is a slight size difference between the two due to washing. Please check. If you have any questions, feel free to comment! Returns are not accepted after purchase.