First Mattress Purchase (Stressed!)

I need this mattress by tonight since i moved to a very rural area tomorrow! Im looking for a queen mattress, firm and preferably innerspring, if not hybrid. I'm a back sleeper, 25F, 150lbs. Look to spend up to $1000. I don't love foam.

I laid on the beautyrest PressureSmart 2.0 Firm 11" Mattress and loved it. Mattress Firm offered me $600 for this $1300 mattress. But the reviews are worrying me because everyone says it degrades in 2-4 years. What should I do?

In the Erie PA Area. Thank you for all your help!!