You can dream while you’re awake. The boundary between wakefulness and sleep is a lot blurrier than you’d think

Tonight, as you close your eyes in bed, something strange will happen to you: Your mind will drift from an ordinary thought to a dream, but it will be impossible to say exactly when it happened. We tend to imagine that the boundary between being asleep and awake is clear: When we are awake, we think; when we are asleep, we dream. Yet, in our study, published in Cell…