This unbranded grey grid-tufted medium profile hybrid innerspring mattress, model MAT-GRY-GRID-260, presents a streamlined, cohesive visual defined by uniform square grid tufting across its top sleep surface, finished with light grey stitched polyurethane piping along all edges. The top cover uses soft quilted grey knitted polyester, paired with dark grey woven 3D mesh side borders, creating a subtle two-tone neutral aesthetic that blends seamlessly with most bed frame finishes. Its construction layers material performance for balanced comfort and durability. The 50mm quilted comfort top combines charcoal-infused memory foam over high-density polyfoam, secured to the support core by high-tenacity polyester cord tufting that prevents internal layer shift over time. The support core uses individually pocketed steel innerspring coils, surrounded by a high-density firm foam perimeter encasement for edge reinforcement. A non-woven polyester anti-slip layer with anti-skid dots forms the bottom, while the piped edge trim adds tailored structural finish. Key functional benefits support consistent sleep quality. Individually pocketed coils deliver effective motion isolation to reduce disturbance between sleep partners, while the reinforced foam perimeter maintains stable firmness for sitting or resting near mattress edges. The 3D woven mesh side border enables steady internal air circulation to support breathability, ideal for warmer climate use. Delivered vacuum-sealed and roll-packed, it can be easily transported to upper floors or small apartment spaces without large delivery crews, and requires full expansion over 72 hours after unpacking. Note that this is a single-sided design with a designated top sleep surface, and fits platform beds, slatted bases, box springs, and adjustable bed frames. For residential settings, it is sized as a King option ideal for master bedrooms accommodating two adult sleepers, particularly back and combination sleepers seeking medium-firm spinal support, and also works well for guest bedrooms serving both temporary and long-term visitors. Procurement teams and residential buyers should note the product ships across multiple cartons, with a reference assembly time per set, and plan to account for the 72-hour expansion window before first use. The static weight capacity supports shared adult use, with defined edge load capacity for stable seated use, making it a practical choice for everyday residential deployment.