The Ontario mattress combines premium materials to create a cool, supportive sleep surface designed for lasting comfort. It begins with our QuadCore® pocketed coil system with TrueEdge360™ support, featuring a double row of coils around the entire perimeter to provide stable, edge-to-edge support across the entire mattress. High-density support foam layers promote proper spinal alignment and create a strong foundation for long-term performance. The comfort system features copper gel-infused latex, delivering a naturally cool, antimicrobial, and pressure-relieving surface that responds quickly to movement and supports a more restful night’s sleep.