Serta iComfort Pro Winchester Firm Twin XL Mattress

Enjoy firm support with the Serta iComfort Pro Winchester Firm Mattress (850003381), a standout choice for the best mattress in 2025. Encased in CoolFeel™ Pro Fabric with Serta® Anti-Microbial Fibre Technology for optimal airflow, this firm mattress integrates 1″ Graphite Infused True Response™ Latex Foam with 1″ Serta® PillowSoft Foam for responsive comfort. Built on a 6″ True Response™ Latex Foam Core and reinforced with 2″ Support Foam, it delivers exceptional stability and alignment, perfect for back and stomach sleepers.

• Wrapped in CoolFeel™ Pro Fabric and Serta® Anti-Microbial Fibre Technology for superior breathability and hygiene.
• Includes 1″ Graphite Infused True Response™ Latex Foam for adaptive support.
• Features 1″ Serta® PillowSoft Foam for added comfort.
• Enhanced with 2″ True Response™ Latex Foam for firm pressure relief.
• Supported by a durable 6″ True Response™ Latex Foam Core for long-term stability.
• Incorporates .5″ Quilted Latex and .5″ Support Foam for additional structure.