I'm not turning anything up for specific drug interactions, so no they will probobly not interect in bad way. However, thats alot of sedatives, plus its too different kinds so I'd worry about possible respitory arrest. I don't advise this combo . . .
dude the human body can take a lot more then u think. its pretty hard to OD on drugs, despite what u may think. 2 lunestas and 1 ambien is COMPLETLEY safe and won't harm u at all.