【COOLING MOLECULE COVER】Unlike traditional mattresses that trap heat, our advanced cooling cover features middle-molecule technology that feels cool to the touch from the first contact. The breathable fabric draws heat away from your body throughout the night, while the hybrid coil system promotes airflow. Perfect for hot sleepers who want temperature regulation without chemical gels. 【5-ZONE ERGONOMIC SUPPORT】Engineered with targeted lumbar and shoulder zones that align your spine precisely. The medium firm feel (6/10) provides balanced support for back, side, and stomach sleepers. Thicker 2mm steel coils prevent sagging and maintain proper spinal alignment throughout the night. Wake up with less morning stiffness and back pain. 【CERTIFIED SAFE MATERIALS】CertiPUR-US Certified for content, emissions, and durability. 100% fiberglass-free fire barrier eliminates skin irritation risks. Low VOC emissions ensure minimal off-gassing - safe to sleep on within 24-72 hours. The cooling cover uses physical molecule technology, no chemical cooling gels or harmful additives. Rest easy knowing your family sleeps safe. 【PRESSURE RELIEF & MOTION ISOLATION】Premium memory foam layers beneath the cooling cover contour to your body's natural curves, relieving pressure points at shoulders, hips, and lower back. Individually wrapped pocket coils isolate motion transfer - perfect for couples. Move freely without disturbing your partner. Enjoy uninterrupted deep sleep even if your spouse tosses and turns. 【RISK-FREE 365-NIGHT TRIAL】Try it in your home for a full year. Sleep through all 4 seasons before deciding. Free returns with no restocking fees. Compressed in a box for easy delivery - unbox, unroll, and let expand 24-72 hours. The cooling cover softens slightly during break-in while maintaining its temperature-regulating properties. Backed by responsive US-based support and forever warranty. 12 Inch Queen Mattress/Queen Mattress 12 Inch/Queen Size Mattresses 12 Inch/Mattress Queen Size 12 Inch/Queen Hybrid Mattress 12 Inch for Back Pain Relief People Queen Mattress 12 Inches - Medium Firm Hybrid Cooling Mattresses - Thicker 2mm Steel for Shoulder/Lumbar Support & Pressure Relief, Fiberglass-Free, Ergonomic Zones- Colchones Queen Size Bed in a Box