I used this for about a month with both of my children. It was really helpful in preventing them from rolling over! The parts that can be washed have been washed in the washing machine. The pillow and waterproof sheet (novelty item) are unused. It's clean with no stains, but there is some pilling and fuzziness from attaching and detaching the Velcro. Retail price is 6600 yen. Please refrain from purchasing if you are concerned about used items. Thank you for looking.