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AFAIK: It's pretty normal as long that you don't have trouble getting back to sleep. Try to google 'sleep cycles' to learn more about how the brain functions. Basically we have, I recall, 4 stages of sleep. Stage 4 is what is known as REM sleep, and this is where vivid dreaming happends, stages 3 is deep sleep and so on ... The point I'm getting to, is that ...


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