diy

Hi pennies,

There is more about the pros and cons of a single 6" core vs two separate 3" layers in post #2 here.

If you are purchasing all your components from a single supplier then when you can’t test a mattress in person then the most reliable source of guidance is always a more detailed phone conversation with a knowledgeable and experienced retailer or manufacturer that has your best interests at heart and who can help “talk you through” the specifics of their layering combinations and the options they have available that may be the best “match” for you based on the information you provide them, any local testing you have done or mattresses you have slept on and liked or other mattresses you are considering that they are familiar with, and the “averages” of other customers that are similar to you. They will know more about “matching” their specific combinations and firmness levels to different body types, sleeping positions, and preferences (or to other mattresses that they are familiar with) than anyone else.

Other than that … there isn’t much I can add to my suggestions about building a DIY mattress that I linked in my earlier reply here.

Phoenix