We all need a good night's sleep to function well physically and psychologically. And on the whole, most sleep experts believe that a medium-firm or firm mattress is a better bet than a softer one.
A mattress that's on the firmer side is generally better at keeping the spine in proper alignment; distribute your body weight more evenly, reducing buildup on pressure points, and provide a more stable surface, making it easier to move about and get into a comfortable position.
