Through Mat, New Sleep Mat, Clean and Safe. The last three photos show the current sleep mat. They are different from the Through Mat item for sale, but are for reference. Distributes body pressure. Purchased in 2016. There are two敷きパッド (shiki-pads), so good for changing. There are no noticeable stains, but the pillow shows signs of use. Since a baby used it, I apologize if I missed anything. The Through Mat has a crease in the middle.