A reflex foam mattress is made from high-density polyurethane foam, commonly known as reflex foam. It provides a firmer feel compared to memory foam but with a few similar qualities like contouring to your body shape. Reflex foam is responsive, durable, and supportive, which makes it ideal for people who prefer a firmer sleeping surface or suffer from back pain. Reflex foam mattresses are firmer than memory foam mattresses, offering strong support for the back and spine. Reflex foam is dense and resilient, making these mattresses more durable over time without sagging. They tend to retain their shape longer than traditional spring mattresses.