Hi bradlyd,
I’m not sure which mattress you are referring to or which firmness level you are asking about (they have many options) and I also don’t know anything about your body type or weight distribution or any mattresses you have tested that worked well for you that I can use as a reference point so there are too many unknowns and variables involved and your question is much too broad to give you a specific answer.
Having said that … when you can’t test a mattress in person then the best approach would be a more detailed conversation with Dreamfoam so they can “talk you through” their various options and help you choose which of them would have the best chance of working well for you (see mattress firmness/comfort levels in post #2 here). They know more about their mattresses and have more experience with “matching” their customers and different body types, sleeping positions, and preferences to their different firmness choices than anyone else.
Phoenix