Are you a long sleeper?

John Lodder / CC

Wrestle with the snooze button every morning? You might be a natural long sleeper. Long sleepers seem to require nine or more hours a night, while short sleepers function fine on fewer than six. Long sleepers have a longer biological night, a period in which melatonin and other hormones are secreted, body temperature lowers, and other physiologic changes occur. And once a long sleeper, it’s very difficult to change.