GREENGUARD Gold Certified: We've tested this product for over 10,000 chemicals! It helps improve indoor air quality, creating a healthier environment for your baby to sleep, play and grow. DaVinci is one of very few brands that offer this certification; QUALITY MATERIAL: Made of solid sustainable New Zealand pinewood and TSCA compliant engineered wood -only the best for your baby 4-in-1 CONVERTIBILITY: Designed to save you the hassle (and extra money!) of buying multiple beds as your little one grows. It easily converts to a mini toddler bed, daybed, and twin-size bed (mini toddler kit #M20399 and twin-size kit #M4799 sold separately); MATTRESS COMPATIBILITY: While this crib fits any standard size mini crib mattress, it best fits with DaVinci’s line of firm comfort, GREENGUARD gold, waterproof mini mattresses GROWS WITH BABY: 4 adjustable mattress positions that you can lower as your baby begins to sit and stand. We've built this crib to withstand even the most active babies and toddlers and last through your child's teen years; FOR YOUR BABY'S SAFETY: Say goodbye to toxic chemicals! Finished in a non-toxic multi-step painting process and lead and phthalate safe. Rest assured knowing it exceeds ASTM International and U.S. CPSC safety standards. SPACE EFFICIENT: A mini crib is a great alternative for smaller spaces (such as parents' bedroom & smaller apartments) or to store at grandparents' house to make traveling back and forth easy for the whole family; COMPLETE THE LOOK: Shop Kalani 3-Drawer Dresser & 6-Drawer Dresser for a coordinated nursery BASSINET ALTERNATIVE: The American Pediatric Association recommends co-sleeping for the first 6 months. A mini crib is a more stylish alternative to a pack-n-play and a more long-term solution than a bassinet for keeping your baby closeby as you sleep