A fire resistant and sound-attenuating lighting assembly adapted to be recessed or mounted behind a ceiling or other surface comprising a light fixture mounted on a plaster frame and adapted to emit light through an opening in the plaster frame and an insulating blanket deployed around the light fixture except for an opening in the light fixture through which light is emitted. In one embodiment, a shell attached to the plaster frame substantially surrounds the insulating blanket. Among other things, the fire-resistant lighting assembly is capable of sustaining fire barrier standards for a ceiling or other surface and maintains the acoustic insulation of the ceiling or other surface thereby reducing noise transmission.