PRODUCT DESCRIPTION
If you’re looking for a supportive, firm mattress without the premium price tag, the St. Simons Firm is an outstanding value. Designed by Southerland—an American mattress manufacturer with over 130 years of experience—and now powered by 3Z Brands, this mattress focuses on delivering durable support and dependable comfort at a budget-friendly price.
A premium knit fabric cover with high-density quilt foam provides a clean, comfortable sleep surface while maintaining a firmer overall feel. Beneath the cover, high-density comfort foam adds just enough cushioning to relieve pressure while still keeping the mattress supportive and stable.
At the heart of the mattress is an 8" 800 Series individually wrapped coil system with PowerEdge® support. These responsive coils provide strong back and body support, help reduce motion transfer between sleepers, and reinforce the edges so you can comfortably use the full surface of the mattress.
A high-density base support foam completes the design, absorbing shock and providing a solid foundation that enhances durability and long-term performance.
For shoppers who want firm support, reliable construction, and excellent value, the St. Simons Firm delivers quality that often exceeds what you’ll find in many mattresses at this price point. It’s a smart choice for anyone who prefers a sturdier feel and wants a mattress that will hold up well night after night—without stretching the budget.
KEY FEATURES
Firm comfort level – great for sleepers who prefer strong support
Premium knit cover with high-density quilt foam
1" high-density comfort foam for lasting cushioning
8" 800 Series individually wrapped coils with PowerEdge® support
High-density base foam for durability and motion reduction
Adjustable base friendly
CertiPUR-US® certified foams
10-year non-prorated warranty
Overall Height: ~11"