Graco Premium Foam Crib and Toddler Mattress in a Box – GREENGUARD Gold Certified, Non-Toxic, Breathable, Removable Washable Water Resistant Outer Cover 4.6 out of 5 stars 5,954 $69.99 source https://www.amazon.com/Graco-Premium-Toddler-Mattress-White/dp/B010S7VZI0/ref=zg_bs_1063306_9/144-0900561-8334043?_encoding=UTF8&psc=1&refRID=XK7SJ4TVP4PRP4B1Q1S7
