GREENGUARD Gold Certified to contribute to healthier indoor air, keeping you and your family safer. We use a variety of premium hardwoods for this bed including solid pine, poplar, rubberwood, birch veneers, premium-quality plywood and MDF. Each finish is thoroughly applied by hand in a multi-step process. Bed has a slat roll foundation and can fit most standard mattresses, a box spring is optional (sold separately). Add the trundle and trundle mattress (both sold separately) to Twin and Full size beds for instant sleepover space. Queen size bed has center legs for additional support and cannot accommodate a trundle. Rigorously tested to meet or exceed all required and voluntary safety standards. Complete your bed. Shop our favorite mattresses. Imported. CARE & MAINTENANCE Dust often using a clean, soft, dry and lint-free cloth. Slightly moisten cloth with water; a damp cloth holds dust and prevents scratching. Avoid direct sunlight and excessive temperatures. Waxing is not recommended on lacquered finish.