Oh beware of bleeding lungnAnd bugs that eat their youngnThe demons in your headnThe wolves under your bead nThe bones of dinosaurs nHidden below the floorsnThey rattle and they shakenAnd make the sound thatnnWakes me up most every nightnBreaks me softlynFireflies take flightnnThe sandman you must trustnHe sprinkles golden dustnThe howling of the owlnMakes me sleepwalk on clouds nA thousand pianos playnI still hear them the next daynA barrel full of snakes nThey make the sound thatnnWakes me up most every nightnBreaks me softlynFireflies take flightnnThe thorn that stays so firmly in my sidenThese fireflies leave me behindnnThe bones of dinosaursnHidden below the floorsnThey rattle and they shakenAnd make the sound thatnnWakes me up most every night nBreaks me softly nFirefliesnWakes me up most every nightnBreaks me softly nFireflies take flight