This item arrived pretty quickly. After opening the box I took it out and laid it out on my granddaughters bed. The instructions say that you can unzip it to help it expand. It also says that it is suggested that it takes 48 hours to complete the expansion. The outer cover isnt real thick which I was shocked by. But the zipper and material are still really nice quality. And can be removed to wash in the machine. The straps are adjustable to fit your mattress. And seem to be sewn really well. The pictures attached are after its been out to expand for about 4 hours. So this isnt after the 48 hours I just zipped it up to take pictures. I gave this mattress topper 5 stars! We will see how it holds up! But it looks like it should last quite a few years! So if you want an inexpensive mattress topper that is made well then this is the one you should purchase!