Feeling Sick? Here's How Many Hours To Sleep Tonight

Image by Jamie Grill Atlas / Stocksy

You know the feeling when you're coming down with something? Your head throbs, your nose is stuffy, your throat tickles, and your muscles ache. But worst of all, you're just so tired.

Don't fight it—sleep is essential for recovering from the flu, a common cold, or any other infection. But just how much slumber does the body need to heal itself?

"We know that most people do best with seven to eight hours of sleep regularly, so if you're under the weather, dealing with a virus or bacteria, you'll want to add on at least another hour or so," said Dr. Heather Moday, medical director of the Moday Center for Functional and Integrative Medicine in Philadelphia. "If you can get around nine or 10 hours, it'll help you get better much faster."

When doctors advise sick patients to catch some zzz's instead of going to work and hitting the gym, it's for some very important reasons. The circadian system and the immune system are deeply connected, and this explains why our bodies make us feel so sleepy when we're sick.

"Sleep is when your immune system repairs itself, the mitochondria clean themselves up, and the liver does most of its detoxification," explained Moday. "When we're sleeping, we create more antibodies from our lymphocytes."

Getting a good night's rest has also been shown to push T-cells into our lymph nodes, thus helping to destroy germ-infected cells in our bodies. It doesn't matter if you get those extra hours by hitting the hay a little earlier, sleeping in, or catching a catnap in the afternoon—anytime you're sleeping when sick allows your body to devote energy toward fighting harmful viruses and bacteria. The key to maximizing the effectiveness of this process, however, is to make sure you're getting quality sleep, said Moday.

"The best way to get good rest is to sleep when it's dark and be awake when it's light out because our circadian rhythms are set by light. Most of us get way too much blue light from phones, screens, and even alarm clocks, and that disrupts your sleep tremendously," she said.

Shutting off your phone an hour or two before bedtime and closing the curtains so your room is dark help create an environment that's conducive to restorative sleep.

"Some people also benefit from using a humidifier or doing nasal passage irrigation when they're sick. Otherwise, you might wake up in the middle of the night if you can't breathe through your nose," said Moday.

While getting some extra shut-eye can help you recuperate from an illness, there are a number of other things you can do to feel better, as well. Drugs like aspirin, acetaminophen, and ibuprofen can help relieve some symptoms, like body aches, said Moday. Staying hydrated will help relieve congestion and promote well-being. And keeping your stress levels down can strengthen your immune system.

"When you're sick is not the best time to take on a big project or go on a business trip. You want to chill out a bit and not put your body in a stressed state, with increased levels of adrenaline and cortisol," said Moday. "Don't go to work; don't go to the gym. Your body is telling you to rest, and you have to listen to that."

Ready to learn more about how to unlock the power of food to heal your body, prevent disease & achieve optimal health? Register now for our FREE Functional Nutrition Webinar with Kelly LeVeque.

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