The Pew study bears out the findings of the Internet Deprivation study somewhat, finding that of those Americans using the Internet regularly, 88% say it plays a role in their daily routines, while 64% said their daily routines would be disrupted if they couldn't use the Internet.

FORBES: The Addictive Internet

"Sleep deprivation and depression go hand in hand among teenagers, " says the study's lead author, Mahmood Siddique, D.

CNN: Sleep deprivation linked to depression in teens

Another study came out this week confirming some older studies that shows that sleep deprivation makes you hungry and could lead to you being overweight.

FORBES: If You're A Night Owl, Get Creative In The Mornings