Ask HN: Do you have low back pain? If so, what kind of mattress do you sleep on?

Hi everyone. I've had low back pain off and on for most of my adult life. I've had herniated discs, sciatica, and some other complications such as not being able to urinate.

I'm guessing the HN crowd has a handful of people in the same situation due to sitting for long hours.

So if you have low back pain, what kind of mattress do you use and has anything worked for you when it comes to sleeping?

I ask because I'm thinking of helping others with a mattress for low back pain sufferers that's worked for me.