Along with linen and cotton, wool is one of the oldest textile fibers in the world, and the oldest animal textile fiber. Along with this, sheep, the major producers of wool, join goats and cattle as animals with the longest history of domestication. Wool has been around for millennia, and will remain a significant fiber for the foreseeable future, even with the widespread use of synthetic fibers, including its use in mattresses.
When a Swedish foam manufacturer, Fagerdala, introduced mattresses made with its Tempur Material to consumers over 25 years ago, it was the only memory foam on the market. Now when you shop for memory foam products, especially mattresses, different varieties of memory foam are featured in the offerings.
Cotton, one of the oldest textile fibers, continues to be one of the most used, even with the wide use of synthetic fibers as well as other natural fibers, and it still is an important material in many mattresses.
A material truth is that a mattress can be no better than what it is made of. What is inside is critically important, but what is on the outside also matters.
Gel can be described as a semi-solid. It has properties of both solids and liquids. According to Wikipedia, “A gel is a solid jelly-like material that can have properties ranging from soft and weak to hard and tough.” A more technical description is a liquid with a cross-linked network. It is sort of like a saturated sponge with microscopic cells.