I Am 79 & Have To Use This Drug To

I am 79 & have to use this drug to get to sleep at times ---I might add that I nap almost every afternoon because i am a very busy person repairing our old mobile home that we bought very cheap when we moved back to wi. to by our family last october & we are making very good progress---will this drug harm me? p.s. I am well enough to donate blood to the RED CROSS !And my medications allow me to do that !