Using this cool gel memory foam mattress topper is super easy. First, unpack it from the compressed packaging. Let it expand for 1 - 2 hours to start, and for the best results, wait a full 24 hours for it to reach maximum expansion. Then, simply place it on your full - size bed. For a peaceful night's sleep, enjoy the pressure relief and cooling sensation it provides. When it comes to maintenance, use a vacuum cleaner with a soft brush attachment to clean off dirt regularly. As for safety, it's fire - rated, but still keep it away from open flames. Also, remember that the topper helps prevent the growth of airborne irritants, but a clean environment will enhance its performance. Just use it, relax, and enjoy a good night's rest!