Long-term studies have found that sleeping on a medium-firm surface can lead to improved sleep quality, reduced back pain, and enhanced overall well-being. A study published in the journal Sleep Medicine found that individuals who slept on medium-firm mattresses for at least 6 months, experienced improved sleep quality, reduced back pain and improved mental health compared to those who slept on soft or firm mattresses. By choosing a medium-firm mattress, you can promote long-term health benefits and improve your overall quality of life.