JERFIT 12 Inch King Hybrid Mattress, Medium Firm Gel Memory Foam & Pocket Innerspring, Cooling Bed-in-a-Box, Edge Support, Pressure Relief for Back Pain

JERFIT Advanced Hybrid Design: Merges pressure-relieving gel memory foam with responsive pocket springs for optimal comfort and durable support. Zoned Body Contouring: Features a targeted support system that aligns the spine and cradles the shoulders and hips to effectively alleviate back pain. Cooling Gel Memory Foam: Infused with temperature-regulating gel beads to draw heat away from the body, promoting a cooler and more comfortable sleep. Individually Wrapped Coils: Hundreds of pocketed springs work independently to minimize motion transfer and operate quietly for uninterrupted sleep. Reinforced Edge Support: Sturdy perimeter construction prevents sagging and roll-off, maximizing the usable sleep surface and providing easy ingress/egress. Breathable Comfort Layer: The soft, polyester air-flow fabric promotes enhanced ventilation, reducing night sweats and maintaining a dry sleeping environment. Certified Safe Materials: Constructed with high-quality, CertiPUR-US certified foams that are free from harmful chemicals and ozone depleters. Easy Setup & Expansion: Ships compressed in a box for hassle-free delivery; simply unbox, unroll, and watch it expand to its full king size within 24-72 hours. Universal Compatibility: Designed to fit most common king-size bed frames, foundations, platform beds, and adjustable bases without the need for tools.