If you can pick it up in Kawasaki City, Kanagawa Prefecture, I can discount the shipping cost! ① 90 x 60 baby mattress (used for 6 months) This is a high-resilience mattress purchased on Amazon for 6000 yen. I used it with the Koconel Air crib. I used a waterproof sheet, so there are no stains or spit-up marks, and it's in good condition. ② Two waterproof sheets (used for 6 months) I used the two sheets alternately. I don't see any stains. They have been washed with Attack Zero, a detergent safe for infants. No smoking, no pets. It's still clean and usable, so I'd be happy to pass it on to someone preparing for a baby.