hiccapop Trifold Dual Playard Mattress travel carry bag case. This is the bag only, not the mattress. I am 99% sure this bag came with the hiccapop folding mattress. I also have the inflatable toddler mattress made by the same company, but I believe the bag on that has a drawstring at the top, this one is a little bit bigger which is what makes me think it's from the mattress. It looks brand new, I think we used it once or twice.