There's sleep, and then there's Beautyrest®. With the new Beautyrest® mattress collection, 875-density Pocketed Coil® Technology provides our signature individualized support + motion separation, while Beautyrest® ActiveResponse™ Memory Foam provides contouring comfort desgined to help alleviate aches and pains. With 100 years of innovation behind us and many, many more ahead, our latest collection shows exactly how people at their best, get their Beautyrest®. - For the person who likes medium support with just the right amount of pressure relief - There's sleep, and then there's Beautyrest® With the new Beautyrest® Mattress collection, 875-density Pocketed Coil® Technology provides our signature individualized support + motion separation - Beautyrest® ActiveResponse™ Memory Foam provides contouring comfort designed to help alleviate aches and pains Includes mattress only. Mattress plus box spring option also available. This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads