Innersprings and Pocketed Springs. With innerspring mattresses, the springs are joined together, so that when one is compressed, its neighbors are also compressed because they are joined. That then affects your partner sleeping beside you. In some cases, this effect can be minimized by alternating the coiling of the springs, but not eliminated.
Most foam mattress pads have impressed even those who initially didn’t believe in their attributes. Initially, it seems that these memory foam bed toppers seemed to be simply a craze. But over time, more people tried them and discovered that they solved many of their back pain, arthritis and even sleep anxiety problems.