Comfortable mattress, HUGE difference from the chair bed mattress that came with the chair.  I would have loved to use it as a topper since it gave the open chair bed height and comfort but since it has to fold up when closed, only the memory foam mattress can fit.  If an even thicker version was available, I would get it for the height but this would suffice as a great upgrade.  

Pros: Substantial upgrade from the original spring mattress.
Cons: Could go a little thicker if available.