Sleep... Lol no. Not for me anyway. I take it in the morning and again in the evening. At first, when I started taking it, I was very tired but I wish it would make me tired now. The only side effect is that my skin crawls sometimes but to be honest, I can't say that it is lyrica. I am on a lot of meds. The side effects are endless if you read the information leaflet, but everyone is different. Sorry I can't be of more help

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