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sleeping-with-earplugs-wp

Harvard researchers found that the key difference between sound sleepers and light sleepers is this: The brains of light sleepers stay more alert… Which causes them to wake up at the slightest sound – from a dripping faucet, to the neighbors arguing, to your dog’s snoring. But light sleepers who are able to block out noise with earplugs are much more likely to sleep soundly.