Hi MBates,
I’m assuming that you’ve read the mattress shopping tutorial which includes all the basic information, steps, and guidelines that you will need to make the best possible choice … and know how and why to avoid the worst ones.
Two of the most important links in the tutorial that I would especially make sure you’ve read are post #2 here which has more about the different ways to choose a suitable mattress (either locally or online) that is the best “match” for you in terms of “comfort”, firmness, and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) that can help you assess and minimize the risks of making a choice that doesn’t turn out as well as you hoped for and post #13 here which has more about the most important parts of the “value” of a mattress purchase which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on all the other parts of your personal value equation that are most important to you.
The better options or possibilities I’m aware of in and around Barrie, ON (subject to making sure that any mattress you are considering meets your criteria and the quality/value guidelines I linked) are listed in post #2 here.
Phoenix