Experience scientifically-engineered sleep with the Restonic 13" Hybrid Mattress, combining medical-grade cooling technology with premium pressure relief for deeper, more restorative rest. The dual-phase cooling system—featuring phase-change fabric and next-gen TempaGel memory foam—actively pulls heat away from your body, maintaining an ideal sleep temperature 35% longer than standard hybrids. Beneath, 1,000 individually wrapped coils with 5-zone precision support adapt to your shoulders, hips, and lumbar region, while the patented Marvelous Middle® delivers 25% firmer reinforcement for spinal alignment. The 360° SuperEdge ensures full surface usability, making this medium-firm (6.8/10) mattress perfect for hot sleepers, chronic pain sufferers, and couples.