West Virginia gets the worst sleep in the US. Oregon gets the best.

Many Americans don't get the roughly 8 hours of sleep recommended by experts. But who's sleeping the worst? This map has some answers:

The data is the most recent that's available on the topic from the CDC, from 2008. It's from a poll that asked people how many nights out of the past 30 they felt that they'd had insufficient rest or sleep.

The worst-off are West Virginia and Kentucky, each with more of one-third of respondents telling pollsters that they had insufficient sleep over at least 14 of the previous 30 days. These states are geographically located in what seems to be a region of sleeplessness, with many surrounding states sleeping badly, as well.

Things get better in the Midwest and West. Oregon seems to be winning at sleeping, with only 23 percent of residents saying they got insufficient sleep. Wait. Did I say that's winning at sleeping? That's still almost a quarter of Oregon sleeping poorly.

Curious where your state stands? Here's all of them, ranked from least bad to worst:

1) Oregon (22.9%)

2) North Dakota (23.4%)

3) District of Columbia (24.3%)

4) Hawaii (24.3%)

5) California (24.5%)

6) Nebraska (25.3%)

7) Arizona (25.8%)

8) Colorado (25.8%)

9) Minnesota (25.9%)

10) South Dakota (26%)

11) Connecticut (26.1%)

12) New Mexico (26.3%)

13) South Carolina (26.5%)

14) Alaska (26.7%)

15) Idaho (27.2%)

16) Wyoming (27.4%)

17) Vermont (27.5%)

18) Wisconsin (27.5%)

19) New Hampshire (27.6%)

20) Texas (27.6%)

21) Louisiana (27.7%)

22) Utah (27.7%)

23) Rhode Island (27.7%)

24) New Jersey (27.9%)

25) Iowa (28%)

26) Kansas (28.1%)

27) Washington (28.1%)

28) Illinois (28.2%)

29) Michigan (28.2%)

30) Florida (28.4%)

31) Maine (28.4%)

32) Maryland (28.6%)

33) Nevada (28.6%)

34) New York (28.6%)

35) Virginia (28.6%)

36) Massachusetts (28.8%)

37) North Carolina (29%)

38) Montana (29.3%)

39) Indiana (29.4%)

40) Delaware (29.7%)

41) Georgia (29.8%)

42) Pennsylvania (29.9%)

43) Arkansas (30.1%)

44) Missouri (30.1%)

45) Ohio (30.1%)

46) Mississippi (30.4%)

47) Alabama (30.6%)

48) Tennessee (31.2%)

49) Oklahoma (31.7%)

50) Kentucky (35.7%)

51) West Virginia (38.6%)

Further reading

Want to fall asleep faster? Don't use an iPad before bed

You're not sleeping as much as you think you are

Why you're so tired on Monday mornings

Will you support Vox’s explanatory journalism?

We'll be honest: advertising alone isn't enough for Vox, or most newsrooms, to do the amount of high-quality journalism that the world needs and keep it free. We count on contributor support in order to produce nuanced, clear, and optimistic journalism. We don't have a paywall or ask our readers to subscribe in order to see our content, so instead, we’re coming to you this #GivingTuesday to ask you to make an investment in our future. If you’ve read an explainer this year that helped you to see an issue more clearly, got the answer to a long-time question, or just plain learned something, then we hope you’ll consider making a contribution of $20 or whatever you can today.

One-Time Monthly Annual

$5/month

$10/month

$25/month

$50/month

Other

$

Yes, I'll give $5/month

Yes, I'll give $5/month

We accept credit card, Apple Pay, and Google Pay. You can also contribute via