A concussion is a mild traumatic brain injury (TBI) that can temporarily affect how the brain functions. While headaches, dizziness, and difficulty concentrating are well-known symptoms, many people are surprised to learn that sleep problems are also extremely common after a concussion.
Some people find themselves sleeping much more than usual, while others struggle with insomnia, frequent awakenings, or feeling exhausted despite spending enough time in bed. These changes can be frustrating, especially because quality sleep plays a vital role in the brain's healing process.
Understanding how a concussion affects sleep can help you know what to expect during recovery and when it's time to seek medical advice.
A concussion temporarily disrupts normal brain function. Because the brain is responsible for regulating the sleep-wake cycle, even a mild injury can interfere with healthy sleep.
After a concussion, changes may occur in:
These changes can make it difficult to maintain a normal sleep schedule during the healing process.
Sleep disturbances vary from person to person, but several symptoms are especially common.
In the first few days after a concussion, many people notice they feel unusually sleepy.
This increased need for sleep may occur because:
Needing extra sleep early in recovery is common and often improves over time.
Some people experience insomnia after a concussion.
They may notice:
Insomnia may become more noticeable as other concussion symptoms begin to improve.
Sleep may also become fragmented.
People recovering from a concussion often report:
Even if total sleep time seems adequate, frequent awakenings can leave you feeling unrefreshed.
Some individuals continue to experience significant daytime fatigue for weeks after a concussion.
They may:
Daytime sleepiness can interfere with work, school, and daily activities.
Sleep is one of the most important components of concussion recovery.
During sleep, the brain:
Although sleep alone does not "cure" a concussion, adequate rest supports the brain's natural healing processes.
One of the most common myths about concussions is that someone should never be allowed to sleep after a head injury.
In reality, sleep is generally safe and beneficial once a person has been evaluated by a healthcare professional and a more serious brain injury has been ruled out.
In the past, people were often told to stay awake after a concussion. Today, recommendations have changed. Once a clinician determines that emergency care is not needed, sleep is encouraged because it supports recovery.
However, if someone develops worsening symptoms—such as repeated vomiting, increasing confusion, severe headache, weakness, seizures, or difficulty waking—they should seek immediate medical attention.
Recovery varies depending on the individual and the severity of the injury.
For many people:
However, some individuals experience persistent sleep disturbances for months, particularly if they develop post-concussion syndrome, a condition in which symptoms continue beyond the expected recovery period.
Going to bed and waking up at the same time each day helps strengthen your circadian rhythm and promotes more restorative sleep.
Bright light from phones, tablets, and computers can suppress melatonin production and make it harder to fall asleep.
Consider avoiding screens for at least an hour before bedtime.
Returning to work, school, or exercise too quickly can worsen concussion symptoms and make sleep more difficult.
Follow your healthcare provider's recommendations for gradually increasing activity.
While it may be tempting to rely on caffeine to fight fatigue, too much caffeine—especially later in the day—can interfere with nighttime sleep.
A cool, dark, and quiet bedroom can improve sleep quality.
Helpful strategies include:
Healing from a concussion takes time.
Sleep patterns may fluctuate from week to week, and temporary setbacks are not uncommon.
Allowing your brain adequate time to recover is an important part of the healing process.
You should contact your healthcare provider if:
Persistent sleep problems may require further evaluation or referral to a sleep specialist.
Sleep changes are a common part of concussion recovery. Some people sleep more than usual, while others struggle with insomnia or fragmented sleep. These symptoms often improve as the brain heals, but they can be frustrating in the meantime.
Prioritizing healthy sleep habits, following your healthcare provider's recommendations, and giving your brain time to recover can support the healing process. If sleep problems persist or worsen, don't hesitate to seek medical advice.
Sleep isn't just restorative after a concussion—it's an essential part of recovery.
Recovering from a concussion can be challenging, but you don't have to navigate sleep problems alone. If you're experiencing persistent insomnia, excessive sleepiness, or ongoing fatigue after a concussion, talk with your healthcare provider. Identifying and treating sleep issues can help support a smoother recovery and improve your overall quality of life.
If someone you know is struggling with sleep, please click the orange button below to take a free online sleep test and talk with one of our sleep health professionals.