Elevate your sleep experience with the Del Mar Firm Mattress by Harmony, a Beautyrest brand. This mattress offers extra firm comfort and eco-conscious luxury, featuring a lush sleep surface made from ocean-diverted plastic bottles. Stay cool with active cooling fibers and enjoy advanced pressure relief from Beautyrest ActiveResponse™ Memory Foam. With 875 Series Single Stranded Pocketed Coil® Technology for head-to-toe support, this mattress is CertiPUR-US Certified for your peace of mind. Enjoy a restful night's sleep like never before.