Nearly 95 percent of the people who took part in the study said they used some type of electronics an hour before going to bed. Of those, two-thirds admitted to not getting enough sleep.
Researchers say the reason may be that exposure to artificial light from electronics can increase alertness and suppress the release of melatonin, a sleep promoting hormone.
The most sleep deprived in the study was the 13 to18 age group. Twenty-two percent described themselves as sleepy, compared to just nine percent of baby boomers.
