Kiln-dried solid and engineered wood. Made with FSC®-certified wood from responsibly managed forests. Covered in child-safe, water-based finishes. Accommodates most standard mattresses; box spring optional. Compatible with the Mid-Century Trundle (sold separately). GREENGUARD Gold Certified. This low-emitting product has been screened for over 10,000 chemicals and VOCs. Rigorously tested to meet or exceed all required and voluntary safety standards. Made in a Fair Trade Certified™ facility in Vietnam.