Serta Perfect Day 12" Firm King Mattress

The Serta® Perfect Day Mattress® 12" Firm delivers comfort and convenience. Our mattress in a box fully expands quickly so you can sleep on it right away. This quilted innerspring mattress features our supportive coil system for durability and all-night support. Pillowsoft® Aire Foam offers airflow and enhanced cushioning for exceptional comfort. Plus, Serta® Pillowsoft® Foam provides gentle contouring support while QuiltLoft Memory Foam offers additional comfort at the surface of the mattress. Looking for lower back care? A gel foam band provides our signature zoned comfort supporting the lumbar and hips. Our antimicrobial technology keeps your mattress fresh and clean from odor-causing bacteria. Whether you're looking for a guest room, a kid's mattress, or for yourself, the Serta Perfect Day Mattress has what you need, all within your budget.