If you find that your mattress is not firm enough
you can place plywood between the mattress and box spring to stiffen it.
The firm surface will provide the support necessary for your back. A
soft mattress allows your bones and joints to become misaligned.
Make sure you drink enough water. The human body is primarily water,
including our muscles and the discs in our spines. Getting enough water
helps increase the size of the intervertebral discs, which will keep
your spine flexible and reduce your back pain. You really can’t drink
too much water.