03/28/2008 02:45 am ET | Updated Nov 17, 2011

Losing Sleep Could Set Kids Back By Years

Morgan is a 10-year-old fifth-grader in Roxbury, New Jersey. She's fair-skinned, petite, with freckles across her nose and wavy, light-brown hair. Her father is a police sergeant on duty until 3 a.m. Her mother, Heather, works part time, devoting herself to shuffling Morgan and her brother to their many activities. Morgan plays soccer, but her first love is competitive swimming, with year-round workouts that have broadened her shoulders. She's also a violinist in the school orchestra, with practices and lessons each week. Every night, Morgan sits down to homework before watching Flip This House or another show with her mother. Morgan has always appeared to be an enthusiastic, well-balanced child.

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