Shitty beds are SO BAD. I was told once - Never cheap out on shit that is between you and the dirt: Shoes, Tires, Beds, among others. I recommend old school beds that are able to be flipped (which are getting hard to find these days), and getting a separate Pillow top that you can add on if you really need one.
Yes yes yes! Okay so if you are a single person, you can actually "flip" your mattress about 4 ways which is how my full-sized bed at my parents house is still totally comfortable after 14 years. You can rotate it 180 degrees so that the side you naturally sleep on is now the other site. The side by the headboard turns into the side by the feet. After you kill that, you can flip it over. And then you can rotate that side 180 degrees. The problems with pillowtops is that the bed itself - the springs and core of the mattress - isn't what goes first. Its the pillow toppy stuff. Once it starts getting matted, it's over. I also live on the beach now and I imagine that the general moisture in the air has taken some years off the pillowtop. Chips, if left not tightly sealed will go stale within hours.I recommend old school beds that are able to be flipped