UNDATED - If you toss and turn at night, look at the bright side. Some pretty interesting people have suffered from the same ailment:
Vincent Van Gogh couldn't sleep. Unfortunately, he thought dousing his mattress and pillow with camphor would help. Some scholars think it's what pushed him over the edge.
Abraham Lincoln couldn't sleep either. He was known for taking long walks at midnight.
Madonna chalks up her insomnia to the fact that she's a workaholic and a control freak.
Margaret Thatcher didn't sleep much as British prime minister. Her motto: Sleep is for wimps.
For more famous insomniacs, click here.
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