Qingdao Roadzeal Textile Co., Ltd is one of most professional and reliable premium coil mattress top manufacturer and supplier in China。
The coil mattress, also known as an innerspring mattress, is the most enduring and trusted sleep technology in the world. At its core, it relies on the physics of high-tensile steel to provide a reactive, buoyant support system that foam-only mattresses simply cannot replicate. Modern coil technology has evolved far beyond the simple springs of the past, now incorporating individually pocketed systems, zoned wire gauges, and hybrid comfort layers.
In this collection, we feature a range of advanced coil architectures—from traditional Bonnell springs to luxury independent pocketed coils and specialized TPE (Thermoplastic Elastomer) hybrid designs. Whether you are a hospitality procurement manager or a homeowner seeking a breathable, orthopedic sleep surface, our coil collection represents the pinnacle of durability and comfort.
The “feel” and performance of a coil mattress are determined by how the springs are interconnected. We offer two primary engineering styles:
Individually Pocketed Coils: Each spring is encased in its own non-woven fabric sleeve. Because the coils move independently, they provide superior contouring and eliminate motion transfer—perfect for partners with different sleep schedules.
Open Coil (Bonnell) Systems: These hourglass-shaped springs are interconnected by a transversal helical wire. This creates a highly stable, “active” support unit that is exceptionally durable, making it the premier choice for the hospitality industry and those who prefer a firmer, traditional feel.
A human body is not a uniform weight. Your hips and shoulders require different levels of resistance than your head and feet. Our premium coil mattresses utilize Multi-Zone Support Systems:
Lumbar Reinforcement: We use a thicker gauge of steel wire (e.g., $2.3\text{mm}$) in the center third of the mattress to prevent the spine from sagging.
Shoulder Comfort Zones: More flexible coils (e.g., $1.8\text{mm}$ to $2.0\text{mm}$) allow the shoulders to sink in slightly, preventing pressure points for side sleepers.
Edge Support Technology: Every mattress features a reinforced perimeter—either through extra-firm coils or a high-density foam encasement—ensuring you don’t feel like you are “sliding off” when sitting on the edge of the bed.
The inherent advantage of a coil mattress over solid foam beds is its massive internal air volume.
The “Bellows” Effect: The hollow interior of the coil unit acts as a natural ventilation chamber. With every movement you make, warm air is pushed out and fresh, cool air is drawn in.
Thermal Neutrality: When combined with our open-cell comfort foams or 3D POE mesh layers, the coil core facilitates a constant microclimate, keeping your body temperature neutral regardless of the ambient room temperature.
To provide the “cloud-like” comfort of foam with the “push-back” support of steel, we offer advanced hybrid coil mattresses:
TPE/POE Grid Layers: We integrate Thermoplastic Elastomer (TPE) grids above the coil unit. These columns buckle under high-pressure points (hips) while remaining firm under the lumbar, providing a dynamic response that foam alone cannot match.
High-Density Transition Foams: Between the coil core and the quilted top, we use high-density polyurethane ($30\text{kg/m}^3$ to $50\text{kg/m}^3$) to ensure you never “feel the springs,” creating a seamless, luxury sensation.
As a professional manufacturer, we utilize high-carbon, double-tempered steel for all our spring units.
Fatigue Testing: Our coils undergo “Rollator” testing, simulating 100,000 cycles of usage to ensure they maintain their height and tension for over 10 years.
Certifications: All comfort layers are CertiPUR-US® certified, and our coil units meet international flammability standards including CFR 1633 (USA) and BS 7177 (UK).
Coil Count refers to the number of springs in the mattress (e.g., 800 vs. 1,000). While important, Coil Gauge (the thickness of the wire) is often more critical for support. A lower gauge number (like 13) indicates a thicker, firmer wire, while a higher gauge (like 15) indicates a thinner, more flexible wire.
Yes! We use advanced hydraulic compression technology to flatten and roll our coil mattresses. Because we use high-tensile, double-tempered steel, the coils “snap” back to their original height immediately upon unboxing without any loss of structural integrity.
A high-quality coil mattress with a pocketed system and high-density foam layers typically lasts 8 to 12 years. To maximize longevity, we recommend rotating the mattress 180 degrees every 6 months to ensure even wear across the surface.
Traditional interconnected (Bonnell) coils can transfer motion. However, our Pocketed Coil models are specifically designed to eliminate this. Each spring reacts independently, so your partner’s movements on their side of the bed will not be felt on yours.
Coil mattresses are versatile. They work perfectly on a solid platform, a slatted frame (with slats no more than 3 inches apart), or a modern foundation. For our hybrid models, a sturdy, non-flexing surface is recommended to provide the best support for the heavy foam layers.
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