Most of us don't get enough sleep — and we don’t recognize the impact sleeplessness has on us. Without those hours in dreamland, we can be unproductive and grumpy. In fact, research shows that just one bad night of sleep can put a damper on your mood.Â
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Sleepless nights can also have disastrous long-term effects, such as a weight gain, depression, and a weakened immune system. And now, more than ever, it's important to keep your immune system strong and healthy.Â
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Even if you do think you get enough sleep, are you sure your slumber is efficient, restful and deeply restorative? Take this quiz, and find out how well you really sleep.