Hyper Sleep Hearing

Recently I have notice that I am either awoken early or kept up late at night by various sounds. The early morning ones are things like people in my vicinity mowing their lawn at seven on Sunday morning, or the constant hammering of a new house being built behind us, even on weekends. I can live with those because it doesn’t hurt me to go on and get up and get my day started.
What is much more annoying are the late night sounds that are keeping me from falling asleep. For a number of nights in a row I kept hearing loud music playing right in my second floor bedroom window, which was tightly shut. I would get out of bed and go outside, but I couldn’t hear the music on the ground. Finally one night it was so annoying that I put on a sweatshirt and pants on over my night gown and drove around until I found the culprit. A house behind our’s that is up on a little hill. As I pulled up a guest was leaving and he confirmed they had been playing music, but now the host had gone to bed.  
For the last two nights someone has been blowing either a trumpet, which they do not know how to play, or one of those vuvuzela horns like they blew at the World Cup in South Africa. Now that is one annoying sound.
As a middle aged woman I greatly appreciate and need a good night’s sleep. One would think that at my age my hearing would start to deteriorate just enough that I could not be bothered by ambient sounds, but it appears to be quite the opposite. A neighbor playing basketball keeps or wakes me up. A dog barking inside someone’s home startles me. My husband listening to Car Talk with his ear phones makes me toss and turn.
I am worried that my hearing is becoming super human. Is there such a thing as sleep hearing hyper-sensitivity. I don’t feel like I hear any better in the daytime, just when I am trying to or actually sleeping. Heaven forbid I go visit a city I’ll never get a wink of sleep.