system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are firm mattresses recommended but sleeping on the floor isn't?

So I am almost 20 years old and have been diagnosed with scoliosis. While it is not severe at all, my lower back does hurt if I don't sleep in a good mattress. Today I started wondering about sleeping on the floor and a quick google search showed me that it CAN be beneficial! So my question is. Why isn't this recommended by doctors more often? And do you have any experience regarding this topic? (as doctor who recommends it or individual who sleeps on the floor)
gpt
A hard floor and a 'squishy' mattress are opposite extremes. The floor will fully support your body, but will not conform to your body shape. A mattress that is too soft will not support your body well, but will contour to your body well. Ideally, you will want a mattress that can still conform to your body but with sufficient support. This will ensure you can maintain the proper spinal support while sleeping without having too much or too little support.