
I can definitely say that wearing it before bed improves my sleep quality and even wearing it during the day to relax my eyes. I compared them to other brands. And they certainly block more light than most. The only criticism is that the glasses are not made for just any head, but for a specific size. Therefore, there are gaps that let other light through. I ended up incorporating a lens into my sleep mask that allowed me to block out all light, regardless of head size. I don't know why they didn't think of this as it would eliminate almost all complaints about the wrong product.

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