The Serta Dream Haven 12"" Firm delivers comfort and convenience. Delivered conveniently in a box, this mattress fully expands quickly so you can sleep on it right away. This quilted innerspring mattress features a 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 Serta's signature zoned comfort supporting the lumbar and hips. Whether you're looking for a guest room, a kid's mattress, or for yourself, the Serta Dream Haven Mattress has what you need, all within your budget.