This is a portable co-sleeper. In addition to being a co-sleeper, it can also be used in 5 ways: as a changing mat, a nap mat, a play mat, and a bag. I am selling it because it is no longer needed as my child has grown. There are no major noticeable stains, but there are some minor ones. This product is sold at Akachan Honpo for 18,480 yen. Reference: https://shop.akachan.jp/shop/g/g339001800/?srsltid=AfmBOornOnP_pkfMpBgts4CC2VGXbUHeVOcV654llRY4dvo0na3S7iE3CSI Size (approx.) (mm): [When used as a co-sleeper] 380 x 720 x 250 [When used as a bag] 470 x 700 [When used as a mat] 950 x 1100