The Copper Cooling Wave Dynamics Mattress Topper is the next-generation topper that we thought outside the box to create (pun intended). We’ve infused microparticles of natural copper into our pressure-relieving foam to create a cozy, scientifically-sound layer that does wonders for your sleep. Proven to keep bacteria at bay, our copper-infused foam resists buildup of odors and harmful germs. And its unique cooling comfort curves promote better airflow, working with copper to optimize your sleep temperature. A clean, cool and cradling effect for your existing mattress, instantly. Who knew copper could be this comfortable?