First night was not great but by nights 3+ each night the level of comfort grew. I enjoy the support but yet pressure relief for my shoulders and hips.
By far, the most comfortable mattress I've ever slept on, with very effective isolation of any other movement on the bed. And all at a very attractive price.
I can tell that this mattress is way nicer quality than any other mattress I've owned. Where it is not an immediate solution to my back and neck pain, I think it has helped. I also have the power ergo base and love the lumbar support it gives. I find that I sleep deeper because I am tossing and turning less.