A frame for an adjustable has a head section with two longitudinal frame rails separated by at least two lateral members extending between the two longitudinal frame rails, and two sleeves each having a cavity with one of the two sleeves on each of the two longitudinal frame rails. The frame has a foot section having two longitudinal frame rails separated by at least two lateral members extending between the two longitudinal frame rails, and two sleeves each having a cavity with one of the two sleeves on each of the two longitudinal frame rails, and an inner tube with a nose for each of the two sleeves and for moving between a first position retracted in the cavity of the sleeve and a second position extending from the cavity of the sleeve.