We got one for our bunk end, it is great, BUT we were not able to get it to fold up into the bunk end, so we have to find a place to put it during transport, which is on our table. It makes it sort of annoying, as an additional step and a lot of space used to store this topper. I have been thinking about getting a 4-6" inflatable mattress to use as a topper, because when it is deflated it will fold right into the bunk.
We have the 23ikss, and I only tried to fold it into the front. I got the bunk closed, but it stuck too far out into where the slide is for it to close, so the model you have might not have this issue.
Just my thoughts...