Life in the 21st century proceeds at a chaotic pace, leaving so many of us feeling like we are exhausted all the time.
To be sure, the fatigue is real: we're working overtime, not sleeping enough, and hauling around a sizable amount of sleep debt as a result.
But there's a small fragment of the population who suffers from a sleep disorder that leaves them feeling tired the moment they wake up from 10 hours of good sleep.
They are easily defeated by the irresistible siren song of daytime sleepiness in the middle of the work day. They never feel awake, no matter how much caffeine they consume.
What's more, these people—who suffer from a condition called idiopathic hypersomnia—are challenged to find solutions to this life-altering condition.