National Sleep Foundation
WASHINGTON, March 7, 2011
National Sleep Foundation Releases Annual Sleep in America Poll Exploring Connections with Communications Technology Use and Sleep
WASHINGTON, March 7, 2011 /PRNewswire-USNewswire/ — The 2011 Sleep in America® poll released today by the National Sleep Foundation (NSF) finds pervasive use of communications technology in the hour before bed. It also finds that a significant number of Americans aren’t getting the sleep they say they need and are searching for ways to cope.
Many Americans report dissatisfaction with their sleep during the week.
The poll found that 43% of Americans between the ages of 13 and 64 say they rarely or never get a good night’s sleep on weeknights. More than half (60%) say that they experience a sleep problem every night or almost every night (i.e., snoring, waking in the night, waking up too early, or feeling un-refreshed when they get up in the morning.)
About two-thirds (63%) of Americans say their sleep needs are not being met during the week. Most say they need about seven and a half hours of sleep to feel their best, but report getting about six hours and 55 minutes of sleep on average weeknights. About 15% of adults between 19 and 64 and 7% of 13-18 year olds say they sleep less than six hours on weeknights.
“This poll explores the association between Americans’ use of communication technologies and sleep habits,” says David Cloud, CEO of the National Sleep Foundation. “While these technologies are commonplace, it is clear that we have a lot more to learn about the appropriate use and design of this technology to complement good sleep habits.”
Communications technology use before sleep is pervasive.
Americans report very active technology use in the hour before trying to sleep. Almost everyone surveyed, 95%, uses some type of electronics like a television, computer, video game or cell phone at least a few nights a week within the hour before bed. However, baby boomers (46-64 year olds), generation X’ers (30-45 year olds), generation Y’ers (19-29 year olds) and generation Z’ers (13-18 year olds) report very different technology preferences.
About two-thirds of baby boomers (67%) and generation X’ers (63%) and half of generation Z’ers (50%) and generation Y’ers (49%) watch television every night or almost every night within the hour before going to sleep.
“Artificial light exposure between dusk and the time we go to bed at night suppresses release of the sleep-promoting hormone melatonin, enhances alertness and shifts circadian rhythms to a later hour—making it more difficult to fall asleep,” says Charles Czeisler, Ph.D., MD, Harvard Medical School and Brigham and Women’s Hospital. “This study reveals that light-emitting screens are in heavy use within the pivotal hour before sleep. Invasion of such alerting technologies into the bedroom may contribute to the high proportion of respondents who reported that they routinely get less sleep than they need.”
Computer or laptop use is also common. Roughly six in ten (61%) say they use their laptops or computers at least a few nights a week within the hour before bed. More than half of generation Z’ers (55%) and slightly less of generation Y’ers (47%) say they surf the Internet every night or almost every night within the hour before sleep.
“My research compares how technologies that are ‘passively received’ such as TVs and music versus those with ‘interactive’ properties like video games, cell phones and the Internet may affect the brain differently,” says Michael Gradisar, Ph.D., Flinders University (Australia). “The hypothesis is that the latter devices are more alerting and disrupt the sleep-onset process. If you feel that these activities are alerting or causing you anxiety, try doing something more ‘passive’ to help you wind down before bed.”
Generation Z’ers (36%) and generation Y’ers (28%) are about twice as likely as generation X’ers (15%) and baby boomers (12%) to say they play a video game within the hour before bedtime at least a few times a week. More than one in ten (14%) of generation Z’ers say they do so every night or almost every night before going to sleep.