It's a test-and-see type of thing. It's not the cheapest thing to test out, but you may need to try different types of mattresses. Some people with back pain do really great on a very firm mattress, and some people do really great with a much softer mattress. If you're able to, get different types of mattresses that have a return policy. If you're dealing with chronic pain and it's typically worsened overnight and you wake up in worse pain, it would be worth the investment in trying different types of mattresses.