12 Signs You’re Less Quality Sleep

For some, a great night’s sleep is elusive. For others, sleep seems to come easily. And then, there are those who think they’re getting decent shut-eye every night but actually aren’t. Look out for these subtle, surprising clues that you may not be getting the kind of deep, high-quality sleep you need for optimal health. Here are 12 signs you’re not getting high-quality sleep.

1. Unexplained Weight Gain

If you’re gaining weight and you don’t feel like your diet has changed enough to explain the weight gain, it could be a sign of poor sleep. According to one study published in the journal PLoS Medicine, those who slept less than 6 hours a day were nearly 30% more likely to become obese than those who slept 7 to 9 hours a night.

The researchers say it’s because study participants who got less shut-eye had reduced levels of leptin (the hormone that signals satiety to the brain and suppresses appetite) and increased levels of ghrelin (the hormone that stimulates hunger).