Question: what is the difference between a 10 inch and 12 inch memory foam mattress?
Answer: Memory foam mattresses are made of typically 2 or 3 foam layers. ... The difference between a 10 and 12 inch mattress for most people will be about the feel of the level of thickness or firmness. A like for like 12 inch mattress is going to have more of a floating feeling than a 10 inch because of the extra foam.