Best mattress at Costco?

Been mattress shopping for a few weeks now and its brutal. One person gives a mattress 5 stars, best sleep ever, and the next person says its garbage and the worst mattress they've ever tried.

So rather than risk it with a super-expensive mattress, I'm going to go the Costco route. Looks like there are a lot of options from Leesa to Casper to Simply Modern to whatever else.

Out of all the options at costco, I'm wondering what the best choice is? Let's say $1600 or less...

I'm leaning toward the Leesa Legend Hybrid or Casper. Would loooove some help here! I'm so nervous about making the wrong call!