Hi GrandMasterJ,
Congratulations on your new mattress! 
I look forward to your feedback on the product after you’ve had a chance to sleep on it for a while. As you’re aware, CozyPure is a member here, which means I think highly of them.
One of the advantages of trying mattresses locally is that you can try many different types and styles and combinations of materials and components and firmness levels and compare them to each other in “real time” based on your actual experience rather than just “theory” instead of trying one online mattress at a time and not knowing how it compares to the other mattresses that you could have tried or purchased instead. For most individuals this is enough to find a suitable product that is well inside their comfort/support range so that if any fine tuning is necessary it would be relatively minor and involve different mattress pads, sheets, mattress protectors, or perhaps even a topper if a mattress is too firm (see post #4 here and post #10 here). For others, the ability to exchange a mattress when shopping locally is higher up on their personal value equation list, so in those instances it is always important to familiarize yourself with any potential return/exchange policy that a store may offer.
Phoenix