If you find yourself regularly sleeping six hours a night, you're not alone. Although most of us know sleep is essential for optimal health, getting enough of it every night is easier said than done.

The difference between sleeping six and eight hours might seem minimal, but science shows these two hours can significantly ...

RELATED: Is 6 hours of sleep enough? There are natural "short-sleepers," who can sleep less than six hours a night and ...

People with short sleeper syndrome sleep 4 to 6 hours per night and still feel well-rested and alert the next day. Though this rare condition affects roughly one percent of the population ...

She stated, "Short sleepers naturally function well on less than 6 hours of sleep per night. Short sleepers are rare and usually have a genetic predisposition that allows them to maintain ...

Sleep researcher David F. Dinges warns, ”When the duration of sleep drops below seven hours, and especially when it starts to move toward six and a half hours or less, a number of different ...

Melanie de Lange receives funding from Wellcome. A lot of people dread the clocks going back an hour in winter – but reassure themselves that at least they’ll get an extra hour’s sleep.