This Serta Clark’s Hill firm matress is very nice! It is a queen size matress that offers a lot of room. It is very firm in support so you don’t not sink into the bed. It has cooling gel that is that is swirled into a breathable foam . The foam also helps to circulate the airflow so that heat doesn’t get trapped inside the mattress. It has 805 individually wrapped coils. It offers a lot of support and contouring. It is very comfortable to sleep on. Overall this matress is perfect to have!!