There's a lot to like about the mattress. You will not feel anyone else's movements on the bed. Decent support for back, caves in but not too much. Was worried if it would be too hot - not the case. Pain relief - not sure it provides pain relief. Let's say it's not aggravating any back pain.
Overall a decent mattress. Worth a try. Only watch out- the sides are pretty weak so you cannot space yourself and your partner/child too far away. Also 8 inches is quite thin and will cover up any headrest/headboard.