TWIN OVER TWIN BUNK BED FOR KIDS: Twin over twin bunk bed with ladder; Convertible bunk bed can be transformed into 2 individual twin beds for maximum versatility; Designed to fit any standard twin mattress (mattresses not included); Assembly required GREENGUARD GOLD CERTIFIED, SAFETY TESTED: Screened for more than 10,000 chemicals and VOCs known to pollute indoor air; Tested at third-party, accredited laboratories to meet or exceed applicable CPSIA & ASTM International category safety standards CONVERTIBLE AND ADAPTABLE BUNK BED: This versatile twin over twin bunk bed with ladder is a convertible bunk bed that can be transformed into 2 individual twin beds for maximum versatility. QUALITY CRAFTSMANSHIP: Crafted of rubberwood solids, engineered wood, and wood composites; includes a fixed 5-step ladder and full-length safety guardrails for the top bunk. Top bunk not to be used by children under 6 years of age. BY STORKCRAFT, SINCE 1945: Exclusively from Storkcraft – makers of quality nursery and kids' bedroom furniture with 80 years of craftsmanship. Backed by a 1-year limited warranty.