The Orbelle Toddler Bed That Converts to a Lounger has it"s own Mattress. The Orbelle 4" Foam Lounger Mattress is covered in a Breathable Cotton Fabric. It fits the Orbelle Toddler/Lounger. The Mattress is Constructed of flame, retardant, antibacterial, non-allergenic quality materials. The materials of construction help to minimize mold, mildew, and odor. This mattress is Lead and Phthalate free. Features: Covered in a Breathable Cotton Fabric It fits the Orbelle Toddler/Lounger Constructed of flame, retardant, antibacterial, non-allergenic quality materials Materials minimizes mold, mildew, and odor Lead and Phthalate free