Memory foam is made by treating polyurethane foam with chemicals to enhance its density and viscosity. Memory foam’s viscoelastic nature allows it to mold to your body while providing pressure-point relief. Memory foam, also known as viscoelastic foam, is temperature and pressure-sensitive.

When you lie on memory foam, your body temperature and weight soften the foam forming around your body almost like a hug. The foam evenly distributes weight on the sleeping surface, relieving your pressure points. Every body part gets support as the contouring foam molds to your curves, making memory foam mattresses a good option for alleviating back pain or joint pains. If you are a back or side sleeper, memory foam provides natural spinal alignment and enhanced lumbar support.