We tested dozens of bed-in-a-box mattresses over the course ... Firm features an all-foam design with a 6-inch support layer in the center made from high-density foam. The firm side has just ...

A quick search for a queen mattress under $100 on Amazon will give you a page full of wafer-thin beds that are only an inch or two thicker ... thickness (some even as high as 12") but these ...