Serta Perfect Day Firm 12" Twin Mattress-in-a-Box

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