The Plank Firm markets itself as the "firmest, flattest" mattress, so if it's an extra hard feel you're after, this is a good ...

That way, someone who loves a firm mattress ... to most other mattresses on the market. The mattress is 12 inches tall with two inches of gel-infused memory foam, a half-inch of memory foam ...

If you’re looking for a traditional coil mattress or one that’s all memory foam ... firm, and nearly all of them noted how weak the edge support was. Leesa’s high-end offering, the 12-inch ...

One that's caught our eye is the Lucid Gel Memory Foam mattress ... 10, 12 or 14 inches. Here's is a breakdown of its happy-medium 10-inch model: A thick 7.5-inch layer of firm, dense ...