Hi slickvik,
Texas Mattress Makers and Houston Mattress Factory don’t make the same mattresses so you wouldn’t be making “apples to apples” comparisons between the same mattresses or between two mattresses that use the same components and materials. There are many mattresses in the industry that are available in a very wide range of prices and you would probably be able to find a mattress that is half the cost of a mattress at Houston Mattress Factory as well that may also be in the same general “category” but it also wouldn’t be an “apples to apples” comparison in terms of quality or value.
While I can’t tell you what you should do … there is more about the most important parts of the “value” of a mattress purchase in post #13 here which 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 parts of your personal value equation that are most important to you).
While the price of a mattress is important of course … the “value” of a mattress purchase is what is really important and price is just one of many parts of the “value” of a mattress purchase. The mattress you sleep on can have a bigger effect on how you feel and your overall well being than almost any other significant purchase you can make and when you look back on a mattress purchase in a decade or more you will remember much more about how well you slept on it and how long you slept well than you will about the price you paid and differences in price that have only a small effect on the yearly cost of ownership spread out over the years will be much less important to you.
In other words … value comparisons are always much more important than price comparisons.
Phoenix