Hi nimbo1990,
The first place to start your research is the tutorial post here which has 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.
Once you get to step 3 … if you let me know your city or zip code I’d be happy to let you know of any of the better options or possibilities in your area I’m aware of.
Welcome to the Mattress Forum! 
Phoenix