I received this product within the same week I placed the order +++++ One side does not expand fully so slightly not level. One corner just does not expand at all. ++ I like sleeping on foam mattress: I can stay flat instead of sagging and also use my memory foam pillow without neck pain. My cat likes to jump in also. +++++ The firmness does not bother me but I would apply my memory foam topper over it also. ++++ My full sheets and mattress pads don't fill as the foam is a few inches wider maybe due to the fact it did not expand properly on one side. And I have to get a plaform bed frame as the box spring does not fit. ++ I wonder if I should just spend a few hundred more $$ to get a more decent looking brand name foam mattress instead of putting up with this chunk. Anyway you pay for what you get so beware.