People Who Claim They're Fine With Little Sleep May Be Fooling Themselves

Attention everyone who's smugly proclaimed that they "just don't need a full night's sleep." You might have fooled us coffee-chuggers before, but now there's evidence that you're not quite superhuman. According to a new paper published in the journal Brain and Behavior (via Medical Xpress), University of Utah researchers studied patterns in the 839 people, dividing them into two groups: those who slept six hours or fewer per night, and those who got more. They then divided the short sleepers into two more groups: those who felt fine during the day, and those who reported feeling drowsy. When they put them in the MRI scanner -- a dark, boring tube of white noise (perfect for a little nap) -- both sets of short sleepers showed signs of sleep in their brain patterns while getting scanned.