Using your Five 5ided® Smooth mattress protector is easy. Just slip it over your mattress. The universal fit elastic will help it stay in place, fitting mattresses from 6” to 22” deep. Make sure it fully covers the top and sides of your mattress for complete protection. As for maintenance, you can machine - wash it on a gentle cycle. Use mild detergent and avoid using bleach or fabric softeners, as they might damage the H2Pro® liquid - proof membrane. After washing, tumble dry on low heat. Keep in mind that this protector is designed to block liquids, viruses, dust mites, and allergens, so it's important to replace it if it gets damaged. Also, remember that its five - sided protection helps prevent asthma, so keeping it in good condition is crucial for your health.