Foam
There are two types of foam beds: latex and memory foam. Latex has a higher elasticity or resilience than memory foam, which feels more springy than memory foam. Memory foam feels more solid, and less like it is pushing up against your body. Many mattress companies are blending both and seeing good results. Sometimes allergies to latex can be triggered, but this is usually due to skin contact, and does not normally occur with the latex blends that are being used today.
