is one of the processes used in manufacturing latex. Usually chemicals are added in the process because it's easier to work with than natural latex, but Talalay is technically a process, not necessarily a chemical process. When the latex is poured into the mold and the mold is closed, the material is then vacuumed, and then frozen. Manufacturers using the Talalay process claim that it makes a more consistent product than those using the Dunlop process, although the Dunlop process has been around a lot longer, and Dunlop mattresses have a record of having lasted up to 30 years.