I saw u were asking about the memory foam last night, and not sure

whether my reply  got posted or not ( I got error after I posted it, and could not open that post any more).

I have used memory foam for about  1 week now. and we put it on top of box (we removed the mattress, otherwise

it is too high for drawf like me).

so far, nothing to complain, nothing to brag either.......