Serta iComfort Pro Northampton Firm Twin XL Mattress

Enjoy robust firmness with the Serta iComfort Pro Northampton Firm Mattress (850003371), a top choice for the best mattress in 2025. Encased in CoolFeel™ Pro Fabric with Serta® Anti-Microbial Fibre Technology for optimal airflow, this firm mattress features 1″ Graphite Infused True Response™ Latex Foam and 1″ True Response™ Latex Foam for a supportive sleep surface. Built on a 7″ Foam Core and reinforced with 2″ Support Foam and .5″ Support Foam, it offers exceptional stability 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 firmness.
• Features 1″ True Response™ Latex Foam for cooling support.
• Enhanced with 2″ Support Foam for targeted body alignment.
• Supported by a sturdy 7″ Foam Core for durable stability.
• Incorporates .5″ Support Foam for added structural integrity.