Hi Restless in NJ,
The very first place I would start is post #1 here and the information it links to. This will help you know what to avoid and what to focus on and outline the steps that will help you find your best mattress.
Perhaps the saddest part of this is that in an hour or two of reading you will know more about mattresses and what’s important to look for than the large majority of the people who sell them.
This thread will give you some of my thoughts about and an “analysis” of Saatva.
If you are anywhere close then post #7 here has some of the better NJ / NYC options I’m aware of.
if you are elsewhere in NJ … if you let me know your city or zip then I’d be happy to let you know of the better options or possibilities I’m aware of that are closer to you.
Phoenix