Advice on insomnia due to noise pollution?

Hey there, curious if any other folks on tildes suffer with this, and if so, if you can share things that have helped you.

Context: I am a very light sleeper. Eg: the sound of a phone vibrating, or whispering, will wake me up. I have no issues falling asleep at night, nor do I have any anxiety around sleep, I just wake up from the slightest noise. I've been like this all my life.

Unfortunately, I also live in a very noisy neighborhood: lots of modded vehicles, lots of rumbling bass, etc. I wake up 2-5 times a night. I might get a full night sleep once every 2 months.

For the past year, I've been working very hard on solving this problem. I have made some progress, but still suffer nightly because of this. Things I've done:

• Noise masking: I now have 2 white noise machines, an air purifier (max volume), and sleep with ear plugs. Unbelievably, the cars are still loud enough to be heard over all of that and wake me up. Even when I can't hear them, they vibrate the floor/my bed, and the vibration wakes me up. However, this has still made a massive difference (I went from about 3-4 hours sleep/night, to 6-7.)

• Sleep hygiene. I've learned a lot about it, and worked hard to implement different techniques. I keep a very steady sleep schedule. I eat well and exercise. I do not get in bed ever unless for sleep. etc. While this does not prevent waking up from noise, I think it helps with keeping sleep consistent (i.e. at least I know what time I'll get tired at night.)

• Light: In similar vein of sleep hygiene, I've learned a lot about how light impacts our sleep wake cycles; I avoid light and screens in the evening, and get in direct sunlight (for about 20-30 minutes) within an hour of waking. Again, doesn't help with noise, but helps tremendously with keeping sleep consistent.

• Medical help: I see a neurologist / sleep specialist. He is wonderful He prescribed a low dose of gabapentin, which has actually been really helpful. Unfortunately, it only lasts about 4 hours, so while the first half of the night is good, I still wake up many times in the second half of the night. I have tried some other medications (trazadone, benadryl, zyrtec) but they have either had no impact (trazadone), or make you drowsy the next day which makes me miserable (bendaryl, zyrtec).

One slight annoyance is that whenever I bring up sleep issues, the first response I tend to get is "you must have anxiety". Then, advice is tailored to that. Really, it is not anxiety, and therapy will not help me here. I just wake up insanely easy. It seems most solutions are for folks with anxiety, and I don't find a lot for folks that are just light sleepers. Can anyone relate?

Any advice you can throw my way?