A Brief History of the Mattress
Mattresses are a key component of bedding. Because most humans spend over a third of their lives sleeping, finding a quality mattress is important for a high quality of life. Normally comprised of foam and fibers, with metal springs on a wooden frame, mattresses help ensure a restful sleep.
Serta, Sealy, and Simmons are the three largest, most popular mattress brands in the USA.
Standard USA mattress sizes are Twin/Single (39