Hi adriennej72t,
There are some suggestions here but as Shawn mentioned I would wait and would not make any changes yet until your body has had some time to adapt to a new sleeping surface.
This may be better for you but I would be very careful about making changes faster than your body can keep up or you can identify the effect of the change (it can take time for the effect of a chance to become obvious). Slo incremental steps are generally the best approach.
The most important part you mentioned here is that he’s the expert and has more knowledge and experience by far than anyone else concerning his own designs and mattresses. I would not confuse the issue and work closely with him and follow his suggestions closely.
Phoenix