GREENGUARD Gold Certified - Third-party tested and rigorously screened for more than 10,000 chemical emissions and VOCs. GREENGUARD Gold Certified products are low-emitting and contribute to cleaner indoor air for you and your family. JPMA certified non-toxic, lead and phthalate safe Meets or exceeds ASTM safety standards, prop 65 compliant For a Greenguard Gold certified mattress, try our Lullaby Earth mini-mattress Features Includes mini crib with mini mattress (our mini is a non standard size, mattress dimensions: 27.5" x 22.5" x 2") Includes conversion kit to full crib and conversion kit to toddler bed 60 day free trial 18 year limited warranty 3 adjustable mattress heights (dimensions here) Full crib and toddler bed compatible with a standard crib mattress Includes wheels for optional use on mini crib and full crib Materials Crib: Frame constructed from sustainably harvested solid Brazilian Pine and mattress support from TSCA compliant eco-engineered wood Mini mattress: 100% polyurethane foam with a 100% polyester non-removable cover Dimensions Mini crib assembled: 31 in L x 24.5 in W x 31.5 in H Full crib assembled: 54.3 in L x 31 in W x 31.5 in H Toddler bed assembled: 54.3 in L x 31 in W x 29 in H