Everest Firm Spring Air Full Mattress
Experience the legendary quality of Spring Air’s Back Supporter line, known for advanced coil technology and exceptional back support since 1926. Expertly crafted by Sound Sleep Products in Lacey, Washington, the Everest Firm brings that time-honored comfort and durability to your bedroom with modern materials and precision engineering.
The Back Supporter Everest Firm (Model #3324) is built for sleepers who want a truly supportive, firmer feel without sacrificing comfort. Whether you're a back or stomach sleeper or simply prefer less sink, this mattress delivers targeted lumbar support, excellent spinal alignment, and pressure relief exactly where you need it.
Signature Hybrid Construction
At the heart of the Everest is an 8.5" 3-Zone Encased Coil system that provides zoned support, minimizes motion transfer, and delivers responsive, personalized comfort. Extra firm rails around the perimeter give you a stable, supportive edge for sitting or sleeping near the side of the bed.
Comfort layers are precision-stacked for the perfect balance in a firm mattress:
- 3/4" Super Soft with Gel Quilt Foam – Soft, cooling first contact
- 5/8" High Density Soft + 5/8" High Density Soft – Added cushioning
- 7/8" High Density Firm Icecore Gel – Cooling gel technology meets firm support
- 1" Medium Plush Foam + 7/8" Medium Plush Foam – Gentle contouring
- 7/8" Firm Support Foam – Solid, durable foundation
Why Sleepers Love the Everest Firm
- Firm, supportive feel with Spring Air’s signature “just right” comfort
- Cooling performance from Icecore Gel and gel quilt foam
- Superior edge support with extra firm rails
- Durable encased coil construction for long-lasting performance
- Made in the USA with CertiPUR-US certified foams
Proudly manufactured in the Pacific Northwest by Sound Sleep Products, a trusted local producer with over 30 years of expertise.
Available in: Twin, Twin XL, Full, Queen, and King sizes.
Come visit us in store
Experience the legendary quality of Spring Air’s Back Supporter line, known for advanced coil technology and exceptional back support since 1926. Expertly crafted by Sound Sleep Products in Lacey, Washington, the Everest Firm brings that time-honored comfort and durability to your bedroom with modern materials and precision engineering.
The Back Supporter Everest Firm (Model #3324) is built for sleepers who want a truly supportive, firmer feel without sacrificing comfort. Whether you're a back or stomach sleeper or simply prefer less sink, this mattress delivers targeted lumbar support, excellent spinal alignment, and pressure relief exactly where you need it.
Signature Hybrid Construction
At the heart of the Everest is an 8.5" 3-Zone Encased Coil system that provides zoned support, minimizes motion transfer, and delivers responsive, personalized comfort. Extra firm rails around the perimeter give you a stable, supportive edge for sitting or sleeping near the side of the bed.
Comfort layers are precision-stacked for the perfect balance in a firm mattress:
- 3/4" Super Soft with Gel Quilt Foam – Soft, cooling first contact
- 5/8" High Density Soft + 5/8" High Density Soft – Added cushioning
- 7/8" High Density Firm Icecore Gel – Cooling gel technology meets firm support
- 1" Medium Plush Foam + 7/8" Medium Plush Foam – Gentle contouring
- 7/8" Firm Support Foam – Solid, durable foundation
Why Sleepers Love the Everest Firm
- Firm, supportive feel with Spring Air’s signature “just right” comfort
- Cooling performance from Icecore Gel and gel quilt foam
- Superior edge support with extra firm rails
- Durable encased coil construction for long-lasting performance
- Made in the USA with CertiPUR-US certified foams
Proudly manufactured in the Pacific Northwest by Sound Sleep Products, a trusted local producer with over 30 years of expertise.
Available in: Twin, Twin XL, Full, Queen, and King sizes.
Returns Policy
Please contact the store for shipping questions.