Lux Estate® is the middle of the Stearns & Foster range, and the step you feel first is the top of the mattress: more TEMPUR-Indulge™ memory foam over the same IntelliCoil® support system.
Four builds - the tight top at 14.5 inches, the three pillowtops at 16. Below it is Estate®; above it, Reserve® adds the hand-tufting and the deepest comfort layers in the collection.
Every one of these is on the floor in Richmond, Katy or Rosenberg, TX, so you can lie on it before you decide.