Sleeping patterns decide mental health and attitude, suggested the findings of a study disclosed at the 25th anniversary of the Associated Professional Sleep Societies. The report has claimed that people who tend to have a sound sleep for six to ten hours have displayed better scores for life quality and are less likely to experience mental disorders including depression as compared to people who slept for fewer hours.

The findings are important as they reveal information about the importance of getting appropriate amount of sleep around six to nine hours, every night, said lead researcher Charles Bae, Neurologist at the Cleveland Clinic Sleep Disorders Center in Ohio.

"People may already expect that their quality of life could be decreased when they do not get enough sleep, but they may not realize that sleeping too much can also have a negative impact", added Charles Bae. "It was surprising to see that sleeping less than six hours and more than nine hours is associated with a similar decrease in quality of life and increase in depressive symptoms".

During the study, Bae in collaboration with his colleagues examined a database constituting records of around 10,654 patients, collected between January 2008 and May 2010. Afterwards, they observed healthy people as normal sleepers with lower scores of depression.