Abstract: An adjustable firmness mattress assembly is disclosed which comprises a duvet, a first section of foam material having a top surface and a bottom surface with the surfaces capable of supporting a user, a second section of foam material having a top surface and a bottom surface with the surfaces capable of supporting a user, and a cover for enclosing the first and second sections with the cover having a top surface and the duvet adapted for being positioned on the top surface of the cover.

Abstract: A composite mattress is comprised of a rectangular intermediate base with four upper sidewalls extending vertically above the base adjacent the edges of the base forming an upper cavity, four lower sidewalls extending vertically below the base adjacent the edges of the base forming a lower cavity, a spring mattress comprised of a plurality of coil springs individually encased within material pockets positioned in the lower cavity below the base, an air mattress comprised of a plurality of adjustable air cell units formed with independent air cells positioned in the upper cavity above the base, and a cover encasing the entire composite mattress.