"If you suffer from disrupted sleep and use phones ore tablets - buy these"
So for some months, I'd been suffering with loss of sleep, becoming tired in the evenings, and yet never getting a good nights sleep. I kid you not when I say that wearing these had an instant result, for me at least. I was able to sleep through without waking up through the night, and I was able to have a more relaxed evening. Weather you wear glasses or not, I would advise only wearing these in the evening, from around 6pm onwards. If you wear prescription glasses, a yellow tint on your lens would benefit but would not be a substitute. Blue light effects people in different ways, and so only buy these if you feel you may benefit from them. Make sure to buy a suitable fitting pair too, as many are quite large