Why not use earplugs?
I've had trouble falling asleep from as early as I can remember. I found a way to deal with this problem which works great for me. This involves:
a) Go to bed at exactly the same time every day and get up at the same time every day.
b) Accept that you don't fall asleep very fast. So, I need 8 hours of sleep, but I need to lay 9 hours in bed. When I go to bed, I don't expect to fall asleep within half an hour.
c) Make sure your bedroom is very dark. I'm an extreme night person, I sleep throughout the morning till noon, but my bedroom is always very dark.
d) Don't look at the clock at night. You need to avoid geting any clues about how long you are lying awake in bed. That's destructive information. Use airplugs if there are church bells that you can hear.
e) Make sure you get plenty of exercise. Point d) is important in this regard. Suppose you have slept 5 hours. Then, if you know that you slept 5 hours, you may think: "I didn't sleep well tonight, only 5 hours, I'm not going to exercise today". But it may well be the case that you actually don't feel that bad at all. So, if you are not aware of the fact that you got 5 hours of sleep you would feel like exercising.