If you fall asleep the second your head hits the pillow, you should probably rethink your strategy. “People who do that are sleep-deprived,” says Phyllis Zee, MD, PhD, director of the Sleep Disorders Center at Northwestern Memorial Hospital. “It usually takes a healthy person about 10 to 15 minutes to fall asleep.”
On the other hand, if you’re still staring at the clock 30 minutes — or an hour, or many hours — later, one or more of these nighttime bad habits may be to blame.
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