All Cotton vs. Foam Core
Despite what most people think, the difference between these two mattresses is NOT a quality issue, but rather a usage issue. If you are going to be using your mattress as a couch that folds into a ("bi-fold") couch the foam helps the mattress to keep it's shape, maintain a straight line across the back and sit up straight. The foam gives it good posture. If you're going to use your mattress on an "A-Frame" or a "tri-fold" frame then an All Cotton mattress will work better because it will fold more flexibly. If you're going to be using your mattress as a bed only then it is up to you - a Foam Core mattress will be a little more resilient, a bit more bouncy and tends to wear a bit more evenly. All Cotton mattress will definitely be firmer.
