But what makes someone wake up from a coma — a prolonged state of deep unconsciousness? "The short answer is that we don't really know," said Martin Monti, a psychology professor at UCLA who ...

What’s the best way to wake up or wake someone else up? Well, before we get to the gentle nudges and sunrise simulations, ...

Many factors can cause a person to keep waking up at night. Needing to urinate is a common reason someone may wake up at night, but sleep apnea, overheating, and dietary habits are just a few of ...

We asked experts why some people wake up anxious and tense — and what you can do to work past the early-morning wave of ...

If you wake up at the same time every night, you're not alone and there's actually a scientific meaning behind it. Even for ...

Theories about why people are waking up in the middle of the night range from the spiritual to hormonal, i.e. increased cortisol levels. To get to the bottom of why you're waking up in the wee ...

Why do I have trouble getting up in the morning? Certain sleep disorders could be causing someone to have trouble waking up in the morning to one alarm, such as sleep inertia, which causes a ...