BedStory Medium Firm King Mattress - 12 Inch Hybrid Mattress King with Optimal Spinal Support for Back Pain Relief - 2.0mm Advanced Pocket Spring and Motion Isolation, CertiPUR-US Certified

Medium Firm Mattress - Combining multiple foam layers with reinforced pocket springs, BedStory king size mattress offers medium firmness and targeted support for all sleeping positions Premium Motion Isolation - Built with 800+ reinforced steel coils, each individually wrapped to reduce motion transfer, ensuring you won’t feel your partner’s movements. Enjoy a more peaceful, uninterrupted sleep Advanced Breathable Design - Featuring an open-coil system, the medium-firm king mattress delivers 10X more airflow than all-foam beds. Combined with gel-infused foam, it helps maintain optimal sleep temperature all night Certified Materials - This 12 inch king mattress meets CertiPUR-US, OEKO-TEX and CFR1633 standards, ensuring it’s made without fiberglass or harmful substances About BedStory - As the designer and manufacturer, we take pride in having every mattress assembled in the USA. BedStory mattresses have 365-night trial and 10-year support, with a dedicated team always eager to assist BedStory king mattress in a box (80x76x12 Inches)