
I bought this item with high expectations. When you put it on, your head heats up very uncomfortably and very quickly. When I tried this, there was strong electromagnetic radiation and radio frequency radiation in the surrounding space. No blocked. I found it completely useless and a terrible waste of money. Some people leave comments saying it helps them sleep better or feel better. I can't imagine how. Maybe it's just believing they're protected, the placebo effect? Sleeping with a cloth or light covering over your eyes can also promote deeper sleep as it blocks light, but this is not possible with a simple cloth. How can anyone stand when their head gets so hot with this thing? I would never recommend it as I don't think it has any useful function at all and can actually be harmful as it can form a Faraday cage around your head and actually focus in the radiation coming from below or through the face hole penetrates.

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