For as long as springs or coils have been used in mattresses (around 150 years), you’d think there wouldn’t be many questions or any debate about these curved steel wires. But alas, there’s a plethora of information out there about mattress coils intended to convince you of the virtues of innerspring but unfortunately has also confused many people.

We’re kicking off our Mattress Facts series to explore amazing graphene. This is the first of three articles that will explore a mattress component that we have knowledge about because we use it in our factory. It’s intended to share interesting and useful information about materials or production processes, not to sell you products. Enjoy Mattress Facts on us, and not about us.