Mattress Relatively Hard Deluxe material description VIP type: 23cm thick 1.Belgium natural silk fabric 3.Hot-pressed pad 4.High manganese steel spring 5.Hot-pressed pad 6.Eco-friendly coconut fiber 7.Belgium natural silk fabric This Mattress Relatively hard type (23cm thick) Feature: Applicable for people who are used to sleeping on wooden bed, healthy and eco-friendly, giving you comfortable sleep. The fresh coconut fragrance makes people feel cheerful.