http://www.diabetesincontrol.com/results.php?storyarticle=6626
In a recent study conducted by the National Institute of Health looking at 1455 people who were catorgorized into long sleepers over 8 years, mid 6-8 hrs a night and short sleepers less than 6 hours. It was found that the short sleepers had 356% higher risk of impaired glucose tolerance a marker for future diabetes.
Lack of sleep also has a strong link with obesity.
So try and make sleep a priority have a good bed time routine, take a bubble bath, read a book, unwind from your day and go to bed at the right time, to get in those precious zzz's to feel your best.