What Happens in Your Body While You Sleep? | Healthfirst

What Happens in Your Body While You Sleep?

Apr 07, 2020

Sleep deprivation (not getting enough sleep) and sleep deficiency (being sleep deprived, sleeping at the wrong times, or not sleeping well) are common problems. Up to 20% of adults in the United States don’t get enough sleep.

Sleep is necessary and important for your health. Check out below what happens in your body while you sleep.


How Much Sleep Should You Get?

Getting enough sleep is crucial for your physical and mental health. Being well-rested is also important for your safety, since sleep deprivation is a frequent cause of car crashes, falls, and other injuries.

How much sleep you need depends on your age and your lifestyle. Check below to see about how many hours per day you should be sleeping.

Adults 7-8 hours
Teens 9-10 hours
Preteens at least 10 hours
Preschoolers 11-12 hours (including naps)
Babies 16-18 hours (including naps)

Signs You Need More Sleep

If you feel very tired during the day most days, you are likely not getting enough sleep. Lack of good sleep can also make you feel cranky, irritable, frustrated, or anxious.

Other signs of sleep deficiency include feeling sleepy or like you could doze off while reading, watching TV, at the movies, sitting in class, riding in a car, or in the middle of a conversation.

If you feel sleep deprived and like you can’t catch up no matter what, talk to your doctor today. Get some tips on how to get a good night’s sleep here.

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Healthfirst is the brand name used for products and services provided by one or more of the Healthfirst group of affiliated companies.

This health information or program is for educational purposes only and not intended to treat, diagnose, or act as a substitute for medical advice from your provider. Consult your healthcare provider and always follow your healthcare provider’s instructions.

“Get Enough Sleep,” U.S. Department of Health and Human Services. July 25, 2016.

“What are Sleep Deprivation and Deficiency?” National Heart, Lung, and Blood Institute. February 22, 2012.