A coil-on-coil mattress is an advanced hybrid design that uses two separate layers of coils. The 9410 features a top layer of over 2,300 small, flexible NanoCoils® that contour precisely to your body for targeted pressure relief. Below this is a foundational layer of over 1,000 larger, individually pocketed coils for deep, robust support. This dual system provides superior durability, responsiveness, and ergonomic support compared to any single-coil mattress.

For a thick, 17-inch mattress with 8 distinct layers, hand-tufting is a crucial element of craftsmanship. This process involves manually threading twine through all layers and securing them together. This prevents the internal components—like the foams and coil units—from shifting, bunching, or separating over time, ensuring the mattress maintains its structural integrity and supportive feel for its entire lifespan.

Yes. This mattress was specifically designed with durability and reinforced support in mind. The coil-on-coil design, firmer lumbar zone, and premium foams provide heavy-duty stability while maintaining comfort. It resists sagging and maintains shape longer, making it ideal for heavier sleepers who need lasting reliability.

Yes, at Mattress King, we provide convenient delivery services across Oklahoma. We pride ourselves on offering fast, one-day delivery options. For those who opt for our upgraded delivery service, priced at $99, we not only deliver but also set up your new mattress and haul away your old one. In addition to this, we offer a free delivery option that includes doorstep drop-off, similar to services provided by FedEx and Amazon. This option is great for those who prefer a contactless delivery to their front porch or door. For a comprehensive understanding of our delivery services and to find the best option for your needs, please visit our delivery information page here.