Hi Roadchild,
You certainly made a good quality/value choice but as you probably know all new mattresses will have a break in and adjustment period over the course of the first few weeks although for some people it can be much shorter and for others is can be longer. There is more about the break in and adjustment period in post #3 here and there are also some suggestions in post #2 here that may be helpful as well. They have a 100 night trial period which is plenty of time to decide whether the mattress is a good “match” for you in terms of PPP (Posture and alignment, Pressure relief, and your Personal preferences) but at a bare minimum I would give any new mattress at least two weeks (and hopefully longer) before deciding whether you need to make any “fine tuning” changes or return the mattress.
Phoenix