Abstract: A display for displaying the condition of an air mattress. The display comprises a plurality of arrays of elements organized in a hierarchy. Each element represents a pressure increment. Each array comprises a plurality of rows and a plurality columns. The elements in each row of an array being distinctive in appearance from the elements in the other rows of the array. A control that operates the elements to indicate the pressure beginning with the first column, of the first row, of the lowest array in the hierarchy.
Abstract: A multi-chamber air mattress has an outer air chamber having a top and a bottom and a sidewall therebetween; and an inner air chamber disposed entirely within said outer chamber and having a top, a bottom, and a sidewall therebetween. An air pump, a first connection between the air pump and the outer chamber and a second connection between the air pump and the inner chamber to provide air to the outer and inner chambers.