ROTOTObaby (Rototo Cushion) Air Mesh type. Retail price: 13,880 yen I bought this to help with the back-sleeping reflex and spit-up, but my baby preferred being held, so I didn't use it much. However, they did sleep happily when placed in it. Used only for a short period of time, from newborn to 2 months old, and there is no sagging or stains. I also used a bath towel on top to prevent soiling. *The thread on the handle came loose when I lifted it a few times, unable to bear the weight of the cushion (photo 4). It can still be lifted as usual. I would be happy to pass it on to someone who needs it. ☺️