My wife has sciatica, so an upgrade to the 2” standard foam was a must.
We tried the 2” memory foam topper as well, but had issues as stated with it being hard in cold temps, plus the biggest issue was it wouldn’t compress when folding up the tent so it was putting big stress on the retention straps, etc.
Exped megamatt Duo is the single best addition to the rooftop tent we’ve made
It has so many pluses it’s hard to emphasize what an improvement it has been.
-amazing sleep surface, vastly superior honestly to memory foam in terms of comfort. Some argue it’s better than sleeping on their mattress at home, which I’ll agree with since waking up in the fresh mountain air is unrivaled luxury we all love!!
-Warm! Since it has a 1” foam top layer and a really supple outer skin layer it acts as fantastic heat insulation. Add that to a down bag and we almost don’t want to leave the tent in the morning.
-compact- this comes with a disclaimer, as it takes considerable work to get it fully deflated. It can be a pain in the ass honestly because it self-inflates. Kinda like trying to wrestle a dead body and squish the air out and the foam layer needs to be compressed too. If it doesn’t fully get compressed, it’s hard to close the tent. We just leave it in the tent with sleeping bags all season long, that way it’s always ready to go.
-adjustability. You can make it firmer or softer based on taste by how much air you put in. We have a good air mattress inflator/deflator with a cigarette lighter plug that helps expedite inflation/deflation, so this speeds things up considerably. If you move around a lot, meaning set up camp, take down camp daily it can be a consideration, but I don’t mind, it’s worth it.
-quality. It’s pretty robust, not the same crappy air mattresses that spring leaks and have you feeling like you’re on a waterbed at 3am. It sleeps quiet too, so no annoying squeals, etc. I see us getting a lot of use, plus we care for it, so we believe it will be a lifetime product. We even break it out for company and they have said it was great to sleep on.
The biggest drawback is cost, at close to $400 it’s not cheap, but we waited til we could get it at $300 out the door, we’ll worth it if we get the life out of it we expect.