This is an easy question to answer. Memory foam is a polyurethane pressure and temperature sensitive, depending on the compression weight. In fact, the shape of the mold from head to toe and support you. The advantage is that it puts no pressure on your joints, or pressure or isolated points, because your body is supported. When you wake in the morning you'll feel rested, some people claim to be pain. The number of physicians on the cause of arthritis recommended mattresses and memory foam pillows for their patients, who often have trouble sleeping because of pain in the joints.
density of the foam is that you must consider when buying memory foam mattresses and pillows. E is a measure of the density of the foam. If you prefer a little more of the mattress, it is recommended that the density of 5 pounds. This temperature higher density sensitive because it is heavier, takes longer to recover its shape once the bed. 4 lb density temperature sweet, but not sensitive, so give a little less than 5 pounds of support. Both are a good option, will be on all back to personal preference. Resources on both sides, if you believe your dreams will never become a new partner.
Memory foam supports your body weight and temperature combination. Foam adapts to the position of each person during sleep to ensure they are fully supported at all times. That's why you will feel the pain the next morning to stand in the morning free. If you suffer from back pain or neck, be sure to investigate the memory foam pillow. These blocks are specially designed to fit the head and neck to give their full support, and sleep pattern. Maintain alignment of the head during sleep also help relieve pain neck pain.