4-IN-1 CONVERTIBLE CRIB TRANSFORMS INTO BOOKSHELVES: Converts from crib (mattress sold separately) to toddler bed (guardrails sold separately), daybed, and functional bookshelves to keep your child's books organized long after they outgrow the crib. GROWS WITH YOUR BABY: Adjustable mattress support with 4 height options, including a higher position for newborns. Fits any standard full-size crib mattress (sold separately). GREENGUARD GOLD CERTIFIED, JPMA CERTIFIED: GREENGUARD Gold Certified products are screened for more than 10,000 chemicals and VOCs known to pollute indoor air; Expert tested to meet or exceed all applicable category voluntary and mandatory safety standards CONVERSION HARDWARE FOR STAND-ALONE BOOKSHELVES INCLUDED: Securely transform your crib into stand-alone bookshelves with the included hardware, ensuring stability and protection against tip-over risks. (Refer to assembly instructions for installation.) QUALITY CRAFTSMANSHIP: Crafted with pine wood and engineered wood; Packaging tested to reduce the risk of incidental damage that could occur during shipment; Assembly required. COMPLETE THE SET: Complete the Graco Read-with-Me collection with the matching Graco Read-with-Me 6 Drawer Dresser with Bookshelves and Graco Read-with-Me 3 Drawer Chest with Bookshelves.