Originally Posted by GlacierGus
FreedomTracker, we have the same set up- a heated mattress and I just added a 2" memory foam pad. Going for a long weekend in nothern Mn on Oct 6th. We will probably get a chance to try the heated mattress. I'll let you know if the heat comes through.
I would guess you won't get much heat thru the 2" memory foam as we tried putting the heating pad under it and got nothing until we put the pad on top of the foam.
Good luck, maybe the heated mattress puts out more heat.