What would you get for 5k?

Hi all

My current mattress (a 12 year old Stearns and Foster) has seen better days and I wanna take advantage of the sales this week

Obviously, I haven't mattress shopped in a while, and the prices are bumming me out, but I think I can go as high as 5K

Looks like I can get the top of the line Stearns and Foster for that price, but are there any other mattresses you would check out?

I have a herniated disc in my neck and my back so if there are any that are particularly economic, while not being too firm, I would really appreciate that

Thanks!