Kids with bedtime routines get more sleep.

Across the board, we found that most kids are not getting the sleep they need.

Sleep serves not only a restorative function for adolescents' bodies and brains, but it is also a key time when they process what they've learned during the day.

We now know a great deal about adolescent sleep. Biological clocks shift by two hours after puberty. There are literally not enough hours in the night for them to get enough sleep.

Those with four or more electronic devices in their bedroom were twice as likely to fall asleep in school.

24/7 society. Any time of the night or day, you can go to the store, go online. Television, no question, has had an impact on sleep.