Firm mattresses provide substantial support with minimal sink, keeping the spine aligned by limiting how much the mattress contours to the body. This comfort level keeps sleepers positioned on the surface of the mattress rather than sinking in, making it easier to change positions and get in and out of bed. Best suited for back and stomach sleepers, individuals over 230 pounds, and those with mobility concerns, firm mattress options deliver durable, reliable support. Explore our firm mattress collection below.