I bought these for my child's naptime at daycare, but they've graduated, so I'm selling them. I used them for about a year and a half, but they haven't lost their shape or sagged and are still in great condition. They're similar in specifications to a famous brand. My child started sleeping soundly during naps after switching to these, which was a great help. I was also told by the daycare teachers that my child slept well. I regularly washed them with water and dried them in the sun, so they're clean. I remember buying them on Rakuten for around 13,000 yen at the time. I have two sets because my children are siblings. This listing is for the mattress only. I recommend purchasing covers separately. The images are from Rakuten. The name is on the 13th photo, as I put it on with an iron-on tape. It has peeled off, so it seems like you could remove it all cleanly if you take the time. Thank you for your understanding. This is a mattress pad that supports a baby's comfortable sleep with its highly breathable three-dimensional spring structure. - Color: Beige - Material: Three-dimensional spring structure - Breathability: Highly breathable - Durability: Durable - Washing method: Washable as a whole Thank you for looking.