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Deep Sleep: Benefits and Tips to Increase Deep Sleep

Published: Nov 23, 2023
Updated: Sep 16, 2024
Deep Sleep: Benefits and Tips to Increase Deep Sleep
In this article
    Reading time
    10 min

    Are you interested in maximizing the benefits of deep sleep for your overall health? Deep sleep, one of the vital stages of the sleep cycle, is crucial for supporting both physical and mental well-being.

    In this article, we’ll explore the importance of deep sleep and provide evidence-based strategies to improve your sleep quality. We’ll also address the question of how much deep sleep you need per night.

    Key Takeaways
    Deep sleep is essential for growth hormone release, muscle repair, immune system functioning, cognitive function, and memory consolidation.
    Factors like insomnia, stress, and aging can affect the duration of deep sleep throughout the night.
    Certain sleep disorders like sleep apnea and restless leg syndrome can disrupt deep sleep.
    Insufficient deep sleep can impact memory consolidation immune response, and increase the risk of neurological conditions, hormonal changes, and chronic diseases.

    Understanding Deep Sleep

    Deep sleep, often referred to as slow wave sleep, is a pivotal phase within the non-REM sleep cycle. It primarily occurs during the first half of the night and is characterized by the presence of slow delta waves in brain activity. This stage is indispensable for both physical and mental rejuvenation, strengthening the immune system, and promoting optimal brain function and memory consolidation.

    Adults typically need different amounts of deep sleep, but the lack of it is associated with numerous health issues, including a higher risk of heart disease and Alzheimer’s disease.

    During deep sleep, the brain waves slow down significantly, allowing for the consolidation of new information and the repair of the body and brain. Deep sleep also plays a crucial role in the production of human growth hormone, vital for growth and cell regeneration.

    How Much Deep Sleep Do You Need?

    Research suggests that adults should aim for at least 90 minutes of deep sleep per night, although this can vary. Those who don’t get enough deep sleep may experience disruptions in physical and mental health, as well as impaired cognitive function.

    Age GroupRecommended Percentage of Total Sleep Time in Deep SleepApproximate Hours of Deep Sleep (for 7-9 hour sleep duration)
    Newborns (0-3 months)45-50%3.15-4.5 hours
    Infants (4-11 months)25-30%1.75-2.7 hours
    Toddlers (1-2 years)20-25%1.4-2.25 hours
    Preschoolers (3-5 years)20-25%1.4-2.25 hours
    School-age Children
    20-25%
    1.4-2.25 hours
    Teenagers (14-17 years)Varies; generally similar to adults
    Varies
    Adults (18-64 years)20-25%1.4-2.25 hours
    Older Adults (65+ years)May decrease compared to younger adults
    Varies

    Related content:

    How Much Deep Sleep Do You Really Need?

    Age and Deep Sleep: How Much Do You Require?

    Factors Affecting Deep Sleep

    Factors that can impact the duration and quality of deep sleep are your sleep environment, lifestyle choices, and certain medical conditions. However, some factors can disrupt your deep sleep patterns.

    • An uncomfortable sleep environment, like a noisy or bright room, can interfere with deep sleep. It’s essential to create a calm and quiet space for sleeping to promote better deep sleep.
    • Lifestyle choices also play a role in deep sleep. Consuming caffeine or alcohol before bed, having irregular sleep schedules, and spending too much time on screens can all negatively affect the amount of deep sleep you get. It’s essential to be mindful of these choices and make adjustments if necessary.
    • Certain medical conditions, such as sleep apnea or insomnia, can also lead to a lack of deep sleep. If you suspect a medical condition affecting your sleep, it’s important to seek professional help and get a proper diagnosis.

    Addressing these factors is crucial for ensuring a good night’s rest and maximizing the benefits of deep sleep for your health and well-being.

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    Sleep Disorders Associated With Deep Sleep

    Sleep disorders can disrupt deep sleep and cause various disturbances. These disorders include sleep apnea, insomnia, restless leg syndrome, sleepwalking, and night terrors. Certain medications and substances can also affect deep sleep.

    Here are some ways these sleep disorders can impact your restful state:

    • Sleep apnea interrupts your breathing during sleep, leading to frequent awakenings and reduced deep sleep.
    • Insomnia, difficulty falling asleep or staying asleep, can result in reduced deep sleep.
    • Restless leg syndrome causes uncomfortable sensations in the legs, leading to movement and disruption of deep sleep.
    • Sleepwalking and night terrors, known as parasomnias, can occur during deep sleep and cause confusion and fear.

    If you suspect you have a sleep disorder, it’s essential to consult a healthcare professional for diagnosis and treatment options. They can help identify your specific sleep disorder and provide appropriate recommendations to improve your sleep quality.

    Effects of Insufficient Deep Sleep

    Insufficient deep sleep can significantly impact your overall health and well-being. Deep sleep is important for memory consolidation, so not getting enough of it can affect your ability to remember and recall information. It can also weaken your immune system, making you more susceptible to infections. Moreover, disruptions in deep sleep have been linked to neurological conditions like Alzheimer’s and Parkinson’s disease.

    In addition to these effects, sleep deprivation can lead to hormonal changes that can affect your appetite. This can potentially result in weight gain and increase your risk of developing insulin resistance, type 2 diabetes, and heart disease.

    Releasing Growth Hormone and Repairing Tissues

    Deep sleep is important for releasing growth hormones and repairing tissues in your body. During deep sleep, your body releases growth hormone, which helps promote muscle, bone, and tissue repair. This repair process is crucial for overall health and recovery from injuries or intense physical activities.

    Cognitive Function and Memory Enhancement

    Getting enough deep sleep can have significant benefits for your cognitive function and memory enhancement. Deep sleep, also known as slow-wave sleep, is a non-rapid eye movement (NREM) sleep stage. Brain activity slows down during this stage. This is when your body functions slow down, allowing for muscle relaxation and repair.

    It’s important to note that deep sleep is a vital part of your sleep cycle. You may experience cognitive function, memory, and even language learning difficulties without enough deep sleep. So, prioritizing deep sleep can positively impact your overall brain health and performance.

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    Deep Sleep for Elite Athletes

    Deep sleep is crucial for elite athletes, greatly enhancing their performance and recovery. Here are some tips to help them maximize their deep sleep:

    First, athletes need to establish a consistent sleep schedule. Going to bed and waking up at the same time every day helps regulate the body’s internal clock and promotes deep sleep.

    Creating a sleep-friendly environment is also essential. Athletes should make sure their bedroom is cool, dark, and quiet. They can use blackout curtains, earplugs, or a white noise machine to achieve this if needed.

    Tips to Get More Deep Sleep

    Many of us often wonder how to increase our deep sleep. We’ve created a video on “How to Get More Deep Sleep” in collaboration with Dr. June Seliber Klein, the Chief Medical Officer at Ognomy.

    It’s important to note that both the duration and quality of deep sleep are crucial for overall health and well-being. In this paragraph, we’ll share tips on how to improve your deep sleep.

    Getting Enough Sleep

    Ensuring you’re getting enough sleep each night is essential. Most adults require around 7-9 hours of quality sleep to function optimally. Establishing a consistent sleep schedule can significantly help. Try going to bed and waking up at the same time every day, including weekends. This regularity can regulate your body’s internal clock, making it easier to fall asleep and wake up feeling refreshed.

    Relaxing Bedtime Routine

    Creating a relaxing bedtime routine can signal your body that it’s time to wind down. Avoid engaging in stimulating activities or using electronics before bed, as these can disrupt your ability to fall asleep. Instead, opt for calming activities such as reading a book, taking a warm bath, or practicing relaxation techniques like deep breathing or meditation. These practices can help calm your mind and prepare your body for a restful sleep.

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    Deep Sleep and Neurological Conditions

    Deep sleep is essential for our neurological health. It has a significant impact on the development and progression of neurological conditions. Let’s explore three key ways that deep sleep influences our brain health.

    Time for repair and restoration. It allows our brain and body to undergo essential processes that eliminate waste products and restore energy levels. This helps maintain the health of our brain cells and promotes overall brain function.

    Plays a vital role in memory consolidation. It helps our brain store and organize newly acquired information, which enhances learning and memory retention. Our ability to form and retrieve memories can be impaired without enough deep sleep.

    Acts as a protective shield against neurological disorders. Disruptions to deep sleep have been linked to an increased risk of conditions like Alzheimer’s disease and Parkinson’s disease. During deep sleep, toxic proteins are cleared away, and optimal brain health is maintained.

    Conclusion

    Deep sleep is a crucial phase of our slumber that offers incredible benefits for our physical and mental well-being. It is pivotal in promoting growth, repairing the body, and enhancing cognitive function and memory retention.

    However, factors such as stress, insomnia, and aging can affect the quality and duration of deep sleep. Implementing effective strategies like taking a warm bath and adjusting our diet can optimize our deep sleep and harness its excellent benefits.

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    About authors
    Dr. Cui is a board-certified internal medicine physician and applied psychologist with more than 30 years of experience in both fields especially in terms of the regulation and intervention of sleep disorders.
    Dr. June Seliber-Klein, MD DABPN is a board-certified sleep specialist with more than 25 years of experience in sleep medicine.

    Institute of Medicine (US) Committee on Sleep Medicine and Research; Colten HR, Altevogt BM, editors. Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem. Washington (DC): National Academies Press (US); 2006. 3, Extent and Health Consequences of Chronic Sleep Loss and Sleep Disorders. Available from: https://www.ncbi.nlm.nih.gov/books/NBK19961/

    Olson EJ. (2016). How many hours of sleep are enough for good health? https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/how-many-hours-of-sleep-are-enough/faq-20057898

    Saletin, J. M. (2020). Memory: Necessary for deep sleep? Current Biology, 30(5), R234–R236. https://pubmed.ncbi.nlm.nih.gov/32155430/

    Léger, D., Debellemaniere, E., Rabat, A., Bayon, V., Benchenane, K., & Chennaoui, M. (2018). Slow-wave sleep: From the cell to the clinic. Sleep Medicine Reviews, 41, 113–132. https://pubmed.ncbi.nlm.nih.gov/29490885/

    American Sleep Association.(n.d.). What is deep sleep? How to get more of it. https://www.sleepassociation.org/about-sleep/stages-of-sleep/deep-sleep/

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