Which Purple mattresses are compatible with the Purple Metal Platform? The Purple Metal Platform’s steel frame supports up to 2,000 pounds, making it a perfect option for every Purple mattress. Related articles Purple Clip Metal Base - Owner's Manual What is the preferred base to use with the Purple® Mattress? Is the Purple Metal Platform compatible with decorative bed frames? Can I use a headboard with the Purple Metal Platform? What is the Purple Metal Platform Warranty Policy?