The Serta® Five Star 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 individually wrapped 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 for the lumbar and hips. A breathable fabric cover helps you to rest well and wake up refreshed while our antimicrobial technology keeps your mattress fresh and clean from odor-causing bacteria. The Serta® Five Star Mattress®—from box to bed in seconds™. Includes mattress only. Mattress plus box spring option also available. Mattress arrives compressed in a box and then regains its size and shape after opening.