The Serta Five Star Mattress 7"" firm mattress delivers comfort and convenience. The mattress in a box fully expands quickly so you can sleep on it right away. This quilted innerspring mattress features an individually wrapped coil system for durability and all-night support. Pillowsoft Aire Foam offers airflow and enhanced cushioning for exceptional comfort. A breathable fabric cover helps you to rest well and wake up refreshed. The Serta Five Star Mattress-from box to bed in seconds.