Which Simmons Beautyrest Bed is the closet to the Westin Heavenly Bed?

I am trying to find out which Simmons Beauty Rest Bed is the closet to the Westin Heavenly Bed? Different Major Retailers say different models are the closest: From the Simmons Beautyrest Warrenton Pillow Top, Simmons BeautyrestEdgewater Plush Pillow Top Mattress, Simmons Beautyrest Marlin Pillowtop, and the Simmons Beautyrest Classic Pomona in a Plush or Pillowtop. I really need to find out as I am going to make my purchase before July 4th as a suprise for my wife. Thank you