This mattress is very buoyant and resilient, giving it high responsiveness. Fast to return to shape when pressure is applied and released, making it good for any application. This is deal for those who enjoy their movement on bed. With an open-cell structure. High Resilience foam is very springy butstill offes bouncy support. This trait leads it’s firmness to the medium level. Additional Information Quilting Type - Deep Quilting Fabric Type - Soft Knitted Fabric Core Type - Independent Spring Unit (Pocket Spring) Comfort Layer - HD Soft Foam Foam Encasement - Yes Cover Type - Euro Top Mattress Height - 30cm SOFT KNITTED FABRIC DEEP QUILTED TOP HIGH RESILIENCE FOAM HIGH DENSITY FOAM (FIRM)