NATIONAL SLEEP FOUNDATION -- The 2013 Sleep in America™ poll finds that exercise greatly improves sleep, and that vigorous exercisers report the best sleep. Furthermore, less time sitting is strongly associated with better sleep and health.

Learn more about our poll results below:

• Press release
• Summary of findings
• Poll questionnaire
• Raw data (DOI:10.1016/j.sleh.2015.04.012)

Additional information:

• Article: How does exercise affect sleep duration and quality?

• Article: Is there a relationship between sitting long hours and sleep?

• Article: Can Exercise Help with Excessive Sleepiness?

To learn more about sleep and sleep health, please visit the National Sleep Foundation's new website, Sleep.org