Best Mattress for Couples Couples typically have a lengthy mattress wish list. They need a firmness level that works for both partners, cooling, responsiveness, back pain support, pressure relief, and a price they can agree on. It can feel like a losing battle. The Wolf Memory Foam Hybrid Premium Firm Mattress is one that my husband and I often reminisce about. “Premium firm” refers to the overall firmness level, which I found to be a medium-firm, 6.5 out of 10.