A new survey by the National Sleep Foundation finds that just 35 percent of adults say they get eight hours of sleep or more on weeknights. Research shows that daytime sleepiness increases for most people over the course of several days if they don't get enough shut-eye.
Lack of sleep is also a problem for teen-agers.
The survey shows that almost a quarter of kids ages 13 to 18 say they often or always feel tired during the day. The California Democrat says her bill would provide money to schools to help cover their administrative costs to change to a later school day.