Annual sleep poll estimates Americans get less sleep , averaging 6.7 hours a day . The mean hours of sleep on a weeknight dwindled from an average of 7 hours in 2001 to 6.7 hours this year , according to the Sleep Foundation 's poll . Experts : Society has become 24-7 , more complex . We have to be able to function in multiple environments at once
Annual sleep poll estimates Americans get less sleep , averaging 6.7 hours a day . Experts : Society has become 24-7 , more complex . We have to be able to function in multiple environments at once