how does a memory foam mattress work
"Memory foam works by becoming soft enough to mould around a person or body shape. This happens when the high-density, low-resilience polyurethane foam reacts to body heat. When the pressure is removed, it returns to its original shape."
I assume it doesn't return to its original shaper for an hour or two, right?
So, after you've been lying in bed a while, it moulds to you. But then you roll over or move down six inches and, assuming your on your side, your hips have made a big dent but now they are on a hill, and your waist is 6" above the dent your hips had made, and every place else no longer matched the dents and hills in the foam. How is this comfortable?