I think that if you are driving while sleepy, it is best to stop, even for 5 minutes, walk a little, resume the trip for 45 minutes and stop again for another 5. If you come sleepy, no matter how loud the music is, you will stop listening to it and no matter how much you come with your eyes open, they will stop seeing. And speaking of music, one day I heard this interpretation, and listening to it I discovered that my wife, when she calls me and I don't answer her call, could reach the same tone of voice as Miss Callas, for example at minute 2:17, 2:51, 3:40, 4:28. So my wife could have been an opera singer