This 12-inch hybrid mattress keeps you cool as you sleep ... and support that’s heightened by its steel-reinforced edge. Sealy also offers free delivery, a 100-night trial and a 10-year warranty.

A bed-in-a-box pioneer, Leesa launched a decade ago with a single, supposedly perfect mattress. Today, it sells over a dozen all-foam and hybrid beds, including cooling mattresses, mattresses made ...