1. A composite bedding unit comprised of two like and adjoining single bed units and each having a head and foot rail and adapted to be juxtaposed to a median line in a primary double bed condition and to be separated from the median line to a secondary single bed condition, and including;
transverse horizontally disposed guide tracks upstanding from a floor supported base at both the head rail and foot rail of and extending parallel one with the other and substantially coextensively beneath the widths of the two single bed units when they are adjacently juxtaposed at the median line in said double bed condition,
laterally spaced support rollers carried by the head and foot rails and engageable over the guide tracks to individually carry each of the two single bed units for transverse movement toward and away each other,
transverse downwardly disposed stabilizing tracks parallel with and overlying a portion of each of the guide tracks and each stabilizing track extending from the median line a distance less than the extent of the guide tracks and substantially equal to the travel of the single bed unit,
each bed unit having at least one roller carried at the inner ends of the head and foot rails to engage upwardly against the stabilizing tracks when the bed unit is cantilevered,
and transport means for positioning either and both of the two single bed units by transverse movement into either of said primary double bed condition and said single bed condition.