A growing body of research shows that the stress and habits tied to sleeplessness can make it harder to rest the next night.

Imagine being unable to move, convinced that a menacing presence is lurking in your room. This isn't a horror movie, but sleep paralysis, a disorder that freezes nearly 30% of the world's population ...

Ever wake up with a sore lower back or achy shoulders that just ruin the rest of your day? Or get up from bed and try to greet the morning, only to find your neck is too stiff to turn to the window?