Patients with Morvan's syndrome suffer from severe insomnia and have been known to go for months without sleeping.

ECONOMIST: Memory formation

Kids used to sleeping with you may get anxious when made to go solo.

CNN: Six big kid sleep problems

When people want stress relief, they tend to go for massage-the manipulation of muscles, the prone sleeping position and the feel of another's hands all create a comforting environment.

FORBES: Water, Water Everywhere

As the disease progresses, the liver has a hard time filtering out toxins, which can go to the brain and cause problems such as memory lapses, trouble sleeping at night and lack of coordination.

CNN: The growing culprit behind liver disease

Think about these guys -- you work eight hours, you go to class 12 hours, you're working -- you're sleeping in between, doing that for six months.

WHITEHOUSE: "White House to Main Street" Town Hall: Elyria, OH