Primo International Knox 9-Inch Pocket Coil Mattress, Queen Safe, durable design with a pillow-top cushioning that adds extra coziness and support;Thickness : 9 inches 7.1 13 gauge pocket coil system with 2 rows of 11 Gauge pocket coils 1.18 22D foam and 0.8 20D foam high-density foam layers and a fire retardant layer that meets federal regulations 5 year pro-rated warranty Mattress comes compressed and rolled inside wheeled carton for ultimate convenience and portability