Becoming the #1 manufacturer of mattresses in the United States in 2012, Serta showcases a variety of mattresses that span varying price points and sizes to cater to a wider range of people. If you've slept in a hotel, it was probably a Serta mattress.
From the Serta website:
Serta has been a pioneer in comfort since we introduced our very first Perfect Sleeper® mattress to the world in 1931. Since then we have brought many “firsts” to the industry, including our breakthrough iComfort® Sleep System featuring our latest in gel memory foam technology.