The safest option for your baby: This crib is JPMA certified to meet or exceed all safety standards set by the CPSC ASTM; we know chemicals have no place in your nursery, so we use a non-toxic, baby-safe painting process that is lead and phthalate safe Comfy mattress included: This mini crib includes a 2.75-Inch thick mini crib mattress that is extremely comfortable and water-resistant; mattress uses 24" X 38" Size sheets Adjustable height: adjustable height mattress support with 2 convenient positions to grow with your baby Coordinating items: pair this mini crib that comes in a number of popular finishes with any Delta Children dresser to complete your nursery Quality material: Made of sustainable Woods like New Zealand pine and Poplar; tested for lead and other toxic elements to meet or exceed government and ASTM safety standards; size: Assembled mini crib dimensions: 40"L x 27"D x 35"H