I defy anyone to go to sleep when I am playing the feadog (penny whistle)! And my Bodhran. Unless, of course, they are medically sedated, and then I would doubt it.
   I cannot go to sleep with Music playing (unless it is so soft that I can barely hear it, as I have been trained to actively or attentively listen to Music--the form, the key, the harmonic or chordal structure, the instrument &/or instruments, the harmonies, the rhythms, the lyrics, whether the singer(s) (if any)would be sporano, alto, tenor, bass, the language the singer is singing, . . . , etc., etc. If I somehow fall asleep while the tv is on, when Music is played, it wakes me up.
   
***However***, yes, correctly chosen Music can lower heart rates, calm, relax, and the opposite, too. Hayden wrote his "Surprise Symphony" for the royal court's weekly listening enjoyment after the midday meal. The lovely, soft strings lulled the folks to sleep with a tempo a bit slower than the average heart rate, then a quite loud chord was sounded and so on it went. He did this BECAUSE some of them would usually fall asleep during the weekly concert. They were unable to sleep through that entire symphony.