I sleep on a casper and love it, though it's clearly not for everyone. Definitely took longer than a few days to get used to at first. And, as sdix mentioned, great service.

Best part is that they won't substitute a smaller mattress than you paid for without providing any compensation other than, say, a few pillow cases. Casper delivers what you order - every time

In any event, it's easy to understand the price difference of the two models when I see some traditional mattress retailers paying over $100/ft for retail sales space here in Dallas. This deal certainly gets Casper product in front of people, which will benefit them.