The last time I've seen this similar folding mattress was about 30 yrs ago, I'm kind of surprised they still exist. I got this for my daughter who has trouble sleeping on her bed, she rather sleeps on the floor, it breaks my heart everyday to see her laying on the floor... I even bought her blow up beds but still they don't last and always consuming the space... This one is so easy to fold, not have one bit and very comfortable too ... At least I feel less broken hearted to see her sleeping on a comfortable floor...