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Are bed bugs nocturnal?

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It’s easy to think that bed bugs are nocturnal. After all, they do tend to move more at night – and we all know the horror stories about waking up with those 3 telltale bites in a row. But bed bugs aren’t truly nocturnal – they’re just averse to movement. They know their best chance is to avoid human attempts to kill them, so they stop moving when they hear movement.

In fact, bed bugs have no preference for day or night and don’t care much about light one way or the other.

The only exception to the “movement” rule? Large infestations. Those will move simply because some of the bed bugs need to find a new place to hang out – and there’s so many of them, they’ve stopped being scared of your human presence. (This is bad. Call a pest control professional!)

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