Sleep zen is not what its cracked up to be.

I purchased the sleep zen headband, as it seemed to be the answer to what I wanted- a means to cancel light while listening to something to fall asleep. And indeed it was great for the first two weeks. After that, the speakers started to distort, and it simply got worse, to a point now that I can only use them for certain narrators on audiobooks for example. No good at all for music. My advice is to keep the recipe, but source better quality speakers.