Feel the Sealy difference. Since 1881, Sealy mattress has been a leading brand in the sleep industry that is best known for their Posturepedic technology. The design is engineered to provide reinforced support across your back and core, and today, the Sealy Posturepedic mattress remains one of the best-selling mattresses around. The brand has developed many versions of the original design to offer even more personalized support for a variety of sleep needs. That includes the Cocoon by Sealy, as well as the Sealy hybrid mattress. You can find a wide variety of these mattresses at CITY Furniture, because it’s our goal to bring you all the best sleep solutions in one easy place. Plus, we offer everyday free shipping and special finance offers.