We also have the Select Comfort air bed at home and found the TM foam way too firm. We tried the "egg crate" thing and it was not acceptable. In doing a search on the net, I found AERO bed makes a mattress topper. It's only 2 1/5 inches thick inflated and it comes with a pump and a control for each side so my wife and I can individually adjust the firmness. It's still not as good as the one at home, but MUCH better than the other two options!