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The Link Between Concussions and Sleep Disruption

Understanding the Hidden Impact—and How CSMA Can Help


Concussions are more than just a bump on the head. While they’re often associated with sports injuries or accidents, the ripple effects of a concussion can linger long after the initial impact—and one of the most overlooked consequences is sleep disruption.


Sleep and concussions

At Comprehensive Sleep Medicine Associates (CSMA), we’re seeing a growing connection between concussions and chronic sleep issues. Understanding this link is critical for recovery and long-term well-being.


What Is a Concussion?


A concussion is a mild traumatic brain injury (TBI) caused by a sudden blow, jolt, or bump to the head. This can happen during a fall, a car accident, a sports collision, or even something as simple as hitting your head on a cabinet door.


While concussions are labeled “mild” TBIs, their effects can be anything but. Symptoms often include:

  • Headache or pressure in the head

  • Confusion or fogginess

  • Nausea or vomiting

  • Dizziness or balance problems

  • Sensitivity to light and noise

  • Memory issues

  • Fatigue or drowsiness


And here’s where things get more complicated: many people don’t realize that sleep issues are also a common—and persistent—result of concussion.


Sleep, after seeing a medical provider, is not only safe after a concussion—it’s often essential for recovery. Despite the lingering myth that people with concussions shouldn’t sleep, rest plays a critical role in healing the brain. However, it’s common to experience sleep disturbances such as insomnia, excessive daytime sleepiness, or shifts in normal sleep patterns.


concussions, how concussions can impact the body

How Do Concussions Affect Sleep?


After a concussion, the brain may struggle to regulate the normal sleep-wake cycle (also known as the circadian rhythm).


This disruption can lead to several sleep issues, including:

  • Insomnia: Difficulty falling or staying asleep

  • Hypersomnia: Sleeping excessively or feeling sleepy all day

  • Fragmented sleep: Frequent waking throughout the night

  • Delayed sleep phase syndrome: Falling asleep and waking much later than normal


These disturbances are not just frustrating—they can interfere with recovery. When the brain doesn’t get restorative sleep, it struggles to heal. This creates a vicious cycle: the concussion impairs sleep, and poor sleep delays healing.


The Compounding Impact of Poor Sleep


Loss of sleep or sleep deprivation can be significant and is associated with adverse effects on mood and behavior in both children and adults. Poor sleep can exacerbate headaches, dizziness, fatigue, and cognitive difficulties associated with concussions. 



Lack of quality sleep affects far more than just your energy levels and causes fatigue and headaches. After a concussion, poor sleep can:

  • Increase emotional instability, leading to anxiety, irritability, or depression, which can also lead to strained relationships and reduced ability to engage with others

  • Worsen cognitive function, impacting attention, concentration, memory, problem-solving, and decision-making abilities–overall, making it harder to concentrate or remember things

  • Slow physical recovery, including headaches, dizziness, and balance problems

  • Weakened immune response, increasing vulnerability to illness–impairing the body's ability to fight off infections

  • Increase risk of chronic issues, such as post-concussion syndrome or even seizures in some individuals

  • Weight gain, can disrupt the balance of hormones that regulate appetite, potentially leading to increased hunger and weight gain

  • Higher risk of accidents and injuries, as sleepiness impairs judgement, reaction time, and alertness, increasing the risk of accidents


Sleep isn’t just a luxury—it’s a biological necessity for healing.



How CSMA Can Help


At Comprehensive Sleep Medicine Associates, we specialize in identifying and treating the underlying sleep disturbances that can follow a concussion.


Our board-certified sleep experts—including Dr. Jerald H. Simmons, a nationally recognized leader in sleep medicine—offer a comprehensive approach that may include:

  • In-depth sleep evaluations and diagnostics

  • Overnight sleep studies and home testing options

  • Cognitive-behavioral therapy for insomnia (CBT-I)

  • Medication or non-pharmacological interventions

  • Customized care plans based on your unique recovery timeline


We work with patients, caregivers, and referring physicians to ensure that sleep isn’t overlooked during concussion recovery—but actively supported.


concussion checklist

Don’t Let a Concussion Steal Your Sleep—or Your Health


If you or someone you love has had a concussion and is struggling with sleep, don’t wait. Identifying and treating sleep issues early can make a meaningful difference in recovery and quality of life.


📞 Contact CSMA today to schedule an evaluation or learn more about our concussion-related sleep services.





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