This Queen Size hybrid mattress features 15% higher-density individually wrapped coils, with a reinforced edge system delivering over 30% stronger sitting support—effectively addressing edge sagging concerns. Whether sitting together, active use, or moving near the perimeter, it maintains unwavering stability, maximizing usable sleep surface area! The innovative 3D breathable fabric + open-cell gel-infused foam works in synergy with the coil layer to accelerate airflow, dissipating heat up to 40% faster than traditional memory foam—keeping you cool in summer and dry in winter. Certified family-safe materials (no off-gassing, no fiberglass, no chemical smell) ensure restful sleep from day one, ideal for sensitive individuals. Experience Balanced Sleep: PUBPLON Hybrid Mattress  PUBPLON Mattress is expertly engineered to deliver the ideal medium-firm feel, providing tailored comfort for all sleeping positions. Perfect Harmony of Comfort & Support The euro top layer gently conforms to the body's curves. Beneath it, a sturdy system of individually wrapped coils offers dynamic, targeted support to maintain proper spinal alignment.  Undisturbed Sleep & Full-Use Surface The motion-isolating coils absorb movement independently, preventing disturbances from partner's restlessness. Reinforced edges provide exceptional support, preventing sagging. Stay Cool Night Our breathable knit cover and open-cell foam promote steady airflow. Infused with cooling gel, the memory foam layer actively draws heat away from your body, helping regulate temperature.  Health-Conscious, Certified Safe Materials PUBPLON mattress is ISO 17025 certified. It's completely fiberglass-free certified by OEKO-TEX and made with CertiPUR-US certified foams. PUBPLON upgrade your sleep with the perfect blend of pressure relief, support, and cool comfort.