The v5 Firm Mattress offers tighter foam compression and firmer resistance for a dense sleeping surface. Posturization further reinforces the mattress by focusing on areas with the most body weight. Our firm mattress offers the least amount of surface give. If you prefer a more solid feel, a firm mattress may be your best choice. This mattress is perfect for someone who needs a firm yet comfortable option. Get a refreshing night's sleep at a cost-effective price.