Study: Pre-sleep tech use may cost you shut-eye

It's an age-old question: why am I sleeping poorly?

A new study from the National Sleep Foundation says the active use of electronic devices, like smart phones or video games, one hour before going to bed might be what's keeping us awake.

The study also reveals that 43 percent of adults reported they rarely get a good night's sleep during the week, while 60 percent complained of sleep problems, like waking up in the middle of the night.

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"Early Show" Contributor Taryn Winter Brill, who, like many, goes to bed with the TV on or has her laptop or BlackBerry close by, decided to set up an unscientific sleep experiment to find out why she is sleep-deprived.

What happened when Winter Brill pulled the plug on all of her technology? She shares the results with "Early Show" viewers and co-anchor Erica Hill: