As hard as you may try to get a coveted eight hours of sleep every night, the average American gets less than seven hours of quality shut-eye, says the National Institutes of Health. Not everyone needs eight hours to feel refreshed, of course — but if you’re going to bed exhausted and wake up feeling less than refreshed in the morning, something needs to change.

You could be tossing and turning all night for any number of reasons. Check out 10 of the most common.

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