Hi alaska_guy,
Welcome to the Mattress Forum! from “up north” 
Based on your questions I’m guessing that you haven’t read the mattress shopping tutorial here which is the first place I would start your research and includes all the basic information, steps, and guidelines that you will need to make the best possible choice … and perhaps more importantly know how and why to avoid the worst ones (such as all the major brands … see the guidelines here).
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 PPP (Posture and alignment, Pressure relief, and 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.
I don’t make specific suggestions or recommendations for either a mattress, manufacturers/retailers, or materials because the first “rule” of mattress shopping is to always remember that you are the only one that can feel what you feel on a mattress and there are too many unknowns, variables, and personal preferences involved that are unique to each person to use a formula or for anyone to be able to predict or make a specific suggestion or recommendation about which mattress or combination of materials and components would be the best “match” for you in terms of “comfort” or PPP (Posture and alignment, Pressure relief, and Personal preferences) or how a mattress will “feel” to you based on specs (either yours or a mattress) or “theory at a distance” that can possibly be more accurate than your own careful testing (using the testing guidelines in step 4 of the tutorial) or your own personal sleeping experience (see mattress firmness/comfort levels in post #2 here).
I can certainly help you to narrow down your options, help you focus on better quality/value choices that are available to you either locally or online, help you identify any lower quality materials or weak links in a mattress you may be considering, act as a fact check, answer any specific questions you may have along the way that I am able to help with, and help with “how” to choose but only you can decide which specific mattress, material, or manufacturer/retailer is the best match for you based on all the parts of your personal value equation that are most important to you.
Once you get to step 3 in the tutorial … then the better options or possibilities I’m aware of in and around the Anchorage area (subject to the quality/value guidelines I linked) are listed in post #7 here.
Your budget is certainly much more than you would need to buy a great quality/value mattress (see this article)
I’m looking forward to finding out what you end up deciding … and of course any comments or questions that you may have along the way that I can help with that aren’t covered in the tutorial.
Phoenix