Mattress Independent Spring Medium-Firm Feel material description 1.Cashmere knitted fabric 2.Skin-friendly cotton 3.High elastic foam 4.Hot-pressed pad 5.High manganese steel spring 6.Cashmere knitted fabric This Mattress Relatively soft type (about 24cm thick) Feature: Foam mattress and spring mattress are both commonly used in modern life. This mattress is equiped with foam and spring.