Mattress Medium Firm Luxurious material description Luxury type: 31cm thick 1.Belgium natural silk fabric 2.Skin-friendly cotton 3.Smart mini spring 4.Latex imported from Sri Lanka 5.Hot-pressed pad 6.Nine-zone independent bag spring 7.Hot-pressed pad 8.Eco-friendly coconut fiber 9.Belgium natural silk fabric This Mattress Super soft type (about 31cm thick) Feature: Applicable for whole family. As the one side is soft and the other side is hard, so that child can sleep on the back of mattress to protect vertebra, and the adult can sleep on the front. Soft and hard, double sides, more options for your good sleep.