Using your new twin - size bed is easy. First, find a suitable spot in your bedroom for it. Make sure the area is flat and clean. You can then place your mattress on the bed frame. When it comes to maintenance, use a soft, dry cloth to wipe the metal frame and the faux leather headboard regularly. This will keep them looking clean and new. Avoid using harsh chemicals or abrasive cleaners as they can damage the finish. As for the Prop65 warning, since the product contains lead which is a cancer - causing chemical, handle the bed with care. If you notice any damage to the bed, especially to the parts where the lead might be exposed, contact the manufacturer for advice.