Is the Memory Foam offered in mattresses on overstock.com the same as Tempurpedic or is it just a cheaper copy
Has someone else copied the Tempurpedic process and is selling it at a cheaper price? Or has overstock.com acquired surplus Tempurpedic products and has to leave off the Tempurpedic name when they sell them.

it’s not Tempurpedic. The memory foam, called viscoelastic, is patented in the Tempurpedic formulation.
Other memory foams contain viscoelastic, but can’t duplicate Tempurpedic’s formula.