Description
Description
Firm support. Trusted quality. Easy delivery.
The Serta Perfect Day 12″ Firm Mattress-in-a-Box is designed for sleepers who prefer a firmer feel with dependable, all-night support. Built with layered foam construction and convenient boxed delivery, it’s a smart choice for comfort, durability, and value.
Comfort & Support
Firm Comfort Feel – Provides a stable, supportive sleep surface
Gel Memory Foam – Adds light contouring while helping regulate temperature
High-Density Support Foam Core – Promotes proper spinal alignment and reduces motion transfer
Designed for Proper Alignment
This firm mattress helps keep your body properly supported throughout the night, making it an excellent option for back and stomach sleepers or anyone who prefers minimal sink-in feel.
Easy Mattress-in-a-Box Delivery
Compressed, rolled, and boxed for convenient transport
Simple setup—just unbox, unroll, and let it expand
Ready to sleep on within hours
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