Hi espiritone,
The better options or possibilities I’m aware of in the Springfield, IL area are listed in post #14 here.
Just in case you haven’t read it yet as well … post #1 here and the information it links to will give you all the information, guidelines, and steps you need to make the best possible choices in terms of both suitability, quality, and value and help you avoid the worst ones (including major brands such as Simmons).
Phoenix