My name is srishti agarwal! I have pain in my lower back since 3 years. I got my x ray done and it seems quite normal. Consulted a physiotherapist she said my back muscles are weak and I have to exercise regularly to keep the pain suppressed. I got ultrasound and tens done there. Once I take the treatment 8-10 days my pain disappears for 6-8 months. This time it started back in 4-5 months only. I thought of changing my mattress so I wanted to know what kind of mattress is best for lower back pains! Please revert asap.