Short sleepers tended to eat less vitamin C, tap water and selenium (found in nuts, meat and shellfish) consumption, but more lutein or zeaxanthin, which are found in green, leafy veggies.

CNN: Does your diet influence how well you sleep?

Put as simply as possible, it advocated eating from all food groups every day -- two cups of fruit and two and a half cups of vegetables a day, including veggies both dark green (kale, broccoli) and orange (carrots, squash), starches (potatoes, corn), and "other" (artichokes, green beans).

CNN: Healthy habits: A month of living perfectly