Insomnia is one of the most common disorders. The 2005 Sleep in America Poll of the National Sleep Foundation showed 54 percent of respondents had experienced at least one symptom of insomnia at least a few nights a week in the past year. While the vast majority of those polled said they never use sleep aids, 11 percent reported using alcohol, beer or wine; 9 percent, over-the-counter sleep aids; 7 percent, prescription medications; 3 percent, an eye mask or earplugs, and 2 percent, melatonin.

Experts say this erratic sleeping cycle is all too common, especially among busy young women. But many somnorexics don’t know that their habits are unhealthy.