This topper is amazing! It went immediately into shape after opening. We let it rest for 48hrs as recommended. We are using it in our trailer, so we rolled it up and put it in a protective bag. As soon as we unrolled it again, it was right back into its shape. Very cool. The best part is how comfortable it is. We cannot feel the seam in the folded down dinette with this on top.  We really like it.