DH and I are looking to replace our mattress in the near future. We bought our current innerspring in grad school because it seemed comfortable and was fairly cheap. But it's showing its age and I'd like to upgrade. Does anyone have advice about foam vs. latex vs. pillowtop vs. anything else I forgot to list? I'd like a plush/cushy bed nowadays.

How do you rate mattresses? What should we be keeping an eye out for? Are there any specific models or brands you recommend? Thanks for any advice!