I suffered from insomnia and back pain for a long time until I realized that it was my old mattress. I started reading reviews, went to salons, and tried different options. In the end, I took an orthopedic mattress of medium hardness - and it was the right decision  this mattress . Finally, I wake up rested, without heaviness in my back. To be honest, I didn't think that the choice of mattress would have such an impact on the quality of life.