A whopping ninety eight per cent of the 1000 teenagers between 12 and 16 years old in a recent study in UK, had phones, music systems, or TVs in their bedrooms (almost two-thirds had all three). Twenty three per cent of those interviewed said they regularly fell asleep while watching TV, listening to music, or with "other machinery" still running!

In a national survey conducted in 2006, only 20 percent of American teens reported getting nine hours of sleep a night. Nearly half aid they slept less than eight hours on school nights and 28 percent of high-school students reported falling asleep in school at least once a week!

For more on this, read http://copperwiki.org/index.php/Junk_Sleep