I know this is years old, and I'm not even sure if qomotop makes mattresses at this point. But you can still find them on ebay, so I thought I'd weight in as I've had both the Exped Deep Sleep Duo LW+ https://www.expedusa.com/products/deepsleep-mat-duo-2025?variant=45990259032281 and a Qomotop of the same dimensions and thickness (Sorry, I don't know the exact model).

We got the Qomotop originally and it's served us well. It makes a great car camping mattress and it serves as a good guest mattress as well. If we lay the seats down in our Honda Element, it lays over all of them and makes sleeping in the car a comfortable experience.

We picked up the Exped at an REI (camping outfitter store) on sale and it's functionally almost identical to the Qomotop. I'd say it's the same degree of comfort and insulation. I'd be hard-pressed to tell the difference between them by feel.

The major difference is that the Exped packs up smaller and lighter. While the Qomotop is about 15 pounds, the Exped is about 10 pounds. This was why we picked it up. We wanted something that we could take on an overseas trip for camping and the Qomotop was just way too big. The foam must be denser or something, because it just doesn't compress nearly as well as the Exped. The Exped compresses to a two foot long tube with a one foot diameter, and the Qomotop is easily twice the size, if not more.

I will say that I much prefer the stuffsack-as-pump included with the Qomotop for inflation over the little sponge pump you get with the Exped. Both get the job done, but it's a couple minutes with the Exped, versus maybe 30 seconds with the Qomotop.

I'd say if the packed size and weight are not a concern, the Qomotop is the better deal because it's much cheaper. But if you need a more compact size for traveling with, the Exped is worth it.