American Are Sleeping Less
| People Sleeping Less than 6 Hours | People Sleeping More than 8 Hours | |
|---|---|---|
| 1998 | 12 | 35 |
| 2002 | 15 | 30 |
| 2009 | 20 | 28 |
Year
Percent of People
Sources:
edition.cnn.com
| People Sleeping Less than 6 Hours | People Sleeping More than 8 Hours | |
|---|---|---|
| 1998 | 12 | 35 |
| 2002 | 15 | 30 |
| 2009 | 20 | 28 |