When lying horizontally, the human body is a complex series of delicate curves and moveable joints. Without the proper alignment and support, a great deal of stress will build throughout the night, which will lead to pain in the morning. Comfort layers are here to help, and they are available in two materials that provide body support in very different ways. The first and perhaps most popular material is memory foam. A second option is latex foam, a material that is gaining popularity although it is currently lesser known.