Noise machine.

I used this already!

I have various anxiety disorders, one of which is linked to my hypersensitivity to sound. One of my therapists recommended me to listen to white noise to see if it helped any and it definitely does. I listen to it for like an hour after I wake up and before I go to sleep so that if I need to go somewhere, car or traffic noises won't trigger anything. Sometimes if I forget to listen to it before I go to sleep, noises in the middle of the night will wake me up and I'll have a panic attack, not to mention I have terrible nightmares because of the medication for my depression. So that doesn't help.

Anyways, the binaural beat helps the most for me.