Mattresses are made up of a core support layer, an upholstery comfort layer, and a thick fabric called ticking. The upholstery layer is made up of three parts: the insulator, the middle upholstery, and the quilt. The support layer consists of innersprings or foam—or a combo of both called a hybrid. Comfort layers are located just beneath the mattress surface. Materials for these layers vary widely and can include memory foam, latex, cooling gel memory foam, cotton, wool and silk. Most of the highest quality brands will have three core sections inside of a mattress, comfort layer, transition layer, and support layer. A latex mattress is a highly sought-after option for optimal and high-quality sleep due to the ability of the best mattress to assist with proper spinal alignment. Synthetic or natural latex foam, which offers a unique blend of comfort and durability, is what makes up a latex mattress.