Back pain gone, sleeps great in all positions

Spent a decent amount of time researching, when moving from innerspring (not highest-end, but not cheap one). Have only been on this mattress for about 6 months, but thrilled so far. Both my wife and I had mild back pain before this mattress, and for both of us it's completely gone. We have this mattress with the firmer side up (every layer is latex except the wool and cotton on both sides, and it can be put on a firmer or softer side, though weighs about 200lbs so would be difficult to flip). I mostly sleep on my side, though will nap on my back, and wife sleeps mostly on her stomach and occasionally on her side; and the support and comfort are great in all positions. Fine for adult time too. The mattress wasn't cheap (to us) but so far we're very happy.