The rest of us mere mortals can begin to repay our sleep debt by dozing 10 hours a night on weekends and then sticking to seven to eight hours during the week. Your

"If you habitually take two or more bathroom trips a night, you probably have obstructive sleep apnea," says Alex Chediak, M.D., medical director of the Miami Sleep Disorders Center.

No wonder sleep apnea has been linked to heart disease, hypertension, and mood disorders.

But why does it wake you up to pee? Because those mini-suffocations result in lower circulating oxygen levels, your heart pumps harder, raising your blood pressure. As excess fluid builds up in your veins, a feedback loop triggers the release of a pressure-relieving diuretic, making you need to pee.

Raising the pillow end of your bed by a few inches can help prevent that tissue from blocking your throat.

Wash out mucus and irritants by mixing 1/4 teaspoon of table salt in 2 cups of warm water and flushing your nose twice a day using a medical or bulb syringe. Japanese researchers found that people with nasal obstruction were twice as likely to experience daytime fatigue as people with clear passageways.

you're probably eating too many carbohydrates in the morning. And what you're not getting enough of is making it worse.

Epworth Sleepiness Scale.