One thing I can never seem to get enough sleep, no matter how much sleep I try to get, I always wake up tired. New research has found that a lack of sleep can double the risk of heart disease. The research showed that people who cut their sleeping patterns from seven to five hours a night showed a doubled risk of fatal cardiovascular disease. On the other hand, the same research also found that people who increased their sleep patterns to eight or more hours are also twice as likely to die but from cancer, depression and psychiatric problems, as opposed to heart disease. The question is, is it is better to get more or less sleep?