Abstract: A camper unit for vehicle cabin roofs, comprising:a support frame adapted to be secured to the cabin roof of a vehicle;plural elongate members arranged together to define a bed base peripherally about a sleeping zone, wherein the bed base is detachably secured to the support frame;a canopy assembly mounted to the bed base and adjustable between a compact collapsed condition and an expanded erect condition;an elongate support extending centrally of the bed base and having an uppermost face just below the level of the bed base; anda bed base sheet secured to the bed base and being such that, when loaded with two sleepers in the sleeping zone, the bed base sheet sags sufficiently to contact said elongate support and to comfortably cradle the respective sleepers to opposite sides of the elongate support.