Using this twin mattress is a breeze. First, unpack it from the box and place it on a suitable bed frame with a foundation or slatted supports. Let it expand for 48 - 72 hours before using it to ensure it reaches its full size. You can sleep on it in any position you like - back, side, or stomach. When it comes to maintenance, keep the mattress clean by vacuuming it regularly. Avoid spilling liquids on it. If there's a small stain, use a mild detergent and a soft cloth to gently clean the area. Also, it's a good idea to rotate the mattress every few months to ensure even wear and tear.