The Charcoal Grey Quilted Grid Medium-Profile Innerspring Mattress (model MT-GRY-QT250, unbranded) is a versatile public and residential sleep furniture solution with a streamlined, logo-free visual design. Its medium-profile form features a structured quilted grid tufted top, finished with a charcoal double-knit polyester ticking cover and horizontal contrast piped woven polyester side borders, with softly rounded corners for a polished, understated aesthetic that complements a wide range of interior styles. The layout balances dedicated comfort, support, and base layers to create a cohesive, stable sleep surface without extraneous decorative elements. Constructed for long-term durability, the mattress pairs a 350 gsm porous double-knit polyester top cover with a 76 mm quilted comfort layer of 28 kg/m³ high-density polyurethane padding. A 152 mm core of individually pocketed steel innerspring coils forms the primary support structure, surrounded by a full perimeter 32 kg/m³ high-resilience foam encasement for reinforced edge stability, supported by a 26 mm base layer. All internal layers are bonded with low-VOC water-based lamination adhesive, and edges are finished with reinforced woven polyester binding tape. The no-flip, one-sided design eliminates the need for regular rotation-related maintenance. Key functional benefits include a 6/10 medium-firm firmness rating suited to all sleep positions, with individually wrapped coils delivering 4/5 motion isolation to minimize disturbance between adjacent sleepers. The full foam edge encasement supports 113 kg of static load per edge to prevent roll-off, while porous cover and border fabrics support consistent air circulation through internal layers. The mattress holds a total static weight capacity of 272 kg, with a recommended 136 kg weight limit per sleeper, and fits standard full and queen size bed frames, slatted bases, platform beds, and box springs, with required slat spacing of 80 mm and compatible slat thickness of 15 mm bent plywood or solid timber. It is well suited for residential primary bedrooms for single or dual adult sleepers, low-maintenance guest room setups, and high-turnover rental or furnished properties as a cost-effective, hard-wearing sleep solution. Procurement teams should note that the product ships across multiple cartons with a total packaged gross weight of 130 kg per set, requires 40 minutes of assembly using M8-M10 bolts with a minimum of two fixing points per corner, and main joints support up to 5 controlled assembly cycles for repeated installation during property turnovers. The full size unit measures 1372 x 1905 x 254 mm, and the queen size variant has a net product weight of 41 kg.