The standard mattress is our 4 inch, high density foam mattress, but two mattress upgrade options are offered for upcharge. Optional mattress upgrade options include Tempur-Pedic and GelPatented Tiffany 24/7 Sleep System is designed without bars or springs for a more comfortable bedConstruction / FeaturesView PDFfor more informationMattress OptionsView PDFfor more informationCollection OptionsView PDFfor more information