What is the difference between Tempur-Pedic all-foam and mattresses?

Tempur-Pedic all-foam mattresses use layers of TEMPUR material and support foams for a hugging, motion-isolating feel. Tempur-Pedic hybrid mattresses combine TEMPUR comfort layers with a pocketed coil support system, which can add more bounce, edge support, and airflow while still offering the signature Tempur-Pedic contouring feel.