The Serta Dream Haven 8"" Medium 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 for gentle contouring support. Looking for lower back care? A gel foam band provides Serta's signature zoned comfort supporting for 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.