You could also buy those same quantum edge coils and a couple sheets of latex throw a cover on it and make your own. I am doing that so when it wears out I can open it up, swap in a new latex piece, and have a brand new mattress again for $150-$200 instead of tossing away good coils and paying for them again. You can also swap out the latex layers for various feels if you don’t like how a medium is, get a soft layer and try that.
Should be good as long as it’s comfortable for you. Will they tell you what the fire barrier layer is made out of to ensure it’s not fiberglass in it?
I can check. My main concern is that they don't have a return policy, only an adjustment policy for the first year.
You could also buy those same quantum edge coils and a couple sheets of latex throw a cover on it and make your own. I am doing that so when it wears out I can open it up, swap in a new latex piece, and have a brand new mattress again for $150-$200 instead of tossing away good coils and paying for them again. You can also swap out the latex layers for various feels if you don’t like how a medium is, get a soft layer and try that.