The best firm mattresses are durable and supportive for your sleep needs. Read on for our top tested picks, including beds ...

To majorly change the firmness and feel of a mattress, I usually recommend a memory-foam or latex mattress topper — both of these materials can vary in how soft or firm they are, but they tend ...

If you must sleep on your stomach, opt for an extra-firm foam or latex topper, which will prevent your hips and belly from sinking into the mattress, says Hansraj. For those who switch positions ...

Sometimes, copper or graphite is added to the gel for extra temperature regulation ... hard mattresses Difficult to find a firm memory foam mattress topper for adding support to too-soft beds ...

Both the Puffy Deluxe and the Casper Comfy mattress toppers offer body-cradling memory foam to make a firm mattress softer, which is perfect for side sleepers who need extra pressure relief.

If you have an old saggy mattress or you want extra comfort from your bed, the Emma Diamond Degree Topper is the perfect choice to upgrade your sleep set-up. Made of layers of firm foam ...

Alternatively, a fiber mattress topper filled with cotton or polyester can add softness to a firm bed while counteracting the heat retention of a foam mattress ... and can add extra height ...