If the “sound” is an internal perception, then noise cancelling headphones would not help at all. They might make it worse by quieting any background sounds that could otherwise help cover up the internally produced sensations.
Wearing a Bose QC 35 is so important for me when I go to sleep, because the ANC also blocks out sound and blocks out my tinnitus to some extend. It's a bit of a skill to sleep with them (you can get audio feedback of the ANC mics) but I've mastered it and improved my sleep game a lot because of it.
Normally:
- Tinnitus: 100%
With ANC:
- Tinnitus: 50%
- Bose ANC: 50%
I like the ANC sound more than my tinnitus.
I haven't noticed my tinnitus becoming worse or less worse.
In that case, have you tried something like the Bose Sleepbuds? Same idea, much more comfortable to sleep with.
Also: yep, that's what I mean by it, the white noise sound.