WRT to the 'noise-cancelling' headsets - every tried to sleep with one of them on? Good luck.
No problems for me. It depends if you're a side sleeper or not.
Although for me (and I imagine for many others)
I actually get better sleep on noisier cabins... the noise drowns out crying babies, chatter, people snoring, IFE, etc., almost like white noise. In fact there are apps out there that mimic cabin noise as sleeping aid. Trying to "quiet down" the cabin is self-defeating from good sleep perspective.