Sleep disorders affect millions of Canadians every year. They disrupt how long you sleep, how well you sleep, or how you behave while sleeping. Understanding the different types of sleep disorders can help you take better care of your health and know when to reach out to a healthcare provider.
What Are Sleep Disorders?
A sleep disorder is any problem that regularly disturbs your sleep. These problems fall into three main categories: insomnia (too little sleep), hypersomnia (too much sleep), and parasomnia (unusual behaviour during sleep). Some sleep disorders are more common in children, while others affect adults of all ages.
Poor sleep does more than leave you tired. Over time, it can affect your mood, memory, and physical health. According to Health Canada, getting enough quality sleep is an essential part of overall well-being.
Insomnia: When You Cannot Get Enough Sleep
Insomnia is the most common sleep disorder. It means you have trouble falling asleep, staying asleep, or both. To know if you truly have insomnia, doctors do not just count the hours you sleep. They also look at how rested you feel when you wake up and whether your sleep patterns have recently changed.
Everyone needs a different amount of sleep. What matters most is whether you wake up feeling refreshed. If you regularly feel exhausted in the morning or feel like you slept poorly, that is worth paying attention to.
Acute Insomnia
Acute insomnia is short-term and very common. It lasts anywhere from a few days to a few weeks. It is usually triggered by a specific event or stress — such as a job change, an emotional shock, physical pain, or a major life disruption.
This type of insomnia often goes away on its own once the stressful situation resolves. However, it can sometimes develop into a longer-lasting problem if left unaddressed.
Chronic Insomnia
Chronic insomnia covers a wide range of ongoing sleep problems. These include difficulty falling asleep, waking up too often during the night, and trouble getting back to sleep. Anxiety is often linked to problems falling asleep. Depression is often connected to waking up in the second half of the night and being unable to sleep again.
In rare and more serious cases, a person may experience almost no sleep at all. This level of insomnia is usually linked to serious psychiatric conditions. There is also a form of insomnia where sleep seems normal from the outside but is actually broken up by brief awakenings and nightmares throughout the night.
How to Treat Insomnia
Many effective insomnia treatments start with simple lifestyle changes. These are often called sleep hygiene habits, and they can make a big difference. Here are some practical steps:
Go to bed only when you feel sleepy.
Avoid mentally stimulating activities — like reading a thriller or watching an intense film — in the 30 to 60 minutes before bed.
If you cannot fall asleep, get up and do something calm rather than lying in bed awake.
Avoid large meals close to bedtime.
Keep a consistent wake-up time, even on weekends.
Medications such as sleep aids, anti-anxiety drugs, or certain antidepressants are sometimes prescribed. However, these work best as a short-term support — usually for a few weeks at most. Long-term use can lead to dependence, morning drowsiness, and the need for higher doses over time. Always follow your doctor’s guidance before starting or stopping any sleep medication.
Hypersomnia: When You Sleep Too Much
Hypersomnia means sleeping excessively, either at night or during the day. It is less common than insomnia but can be just as disruptive to daily life. People with hypersomnia may sleep long hours at night and still feel overwhelming sleepiness during the day.
The most everyday form of hypersomnia is simple excessive sleepiness. This can happen after a period of poor sleep, during illness, or due to certain medications — especially anti-anxiety drugs. In other cases, hypersomnia points to an underlying health issue.
Causes of Hypersomnia
Hypersomnia can have many causes. These include:
Psychological conditions such as anxiety or depression.
Neurological conditions such as multiple sclerosis or a brain tumour.
A head injury or concussion.
Infections or toxic exposure.
Certain prescription medications.
Therefore, it is important not to dismiss ongoing excessive sleepiness. A family doctor can help identify the root cause and recommend the right path forward.
Narcolepsy: A Rare Form of Hypersomnia
Narcolepsy is a rare but well-known sleep disorder. It causes sudden, uncontrollable sleep attacks during the day. A person with narcolepsy may also experience a sudden loss of muscle tone — sometimes triggered by strong emotions like laughter or surprise. This combination of symptoms is sometimes called Gelineau syndrome.
Narcolepsy requires a proper diagnosis and ongoing medical management. The Mayo Clinic’s overview of narcolepsy is a reliable resource for learning more about this condition.
Treating Hypersomnia
Treatment depends heavily on the underlying cause. When hypersomnia is tied to another illness, treating that illness is the first priority. In some cases, doctors may prescribe antidepressants or other medications to help manage excessive sleepiness. A newer medication called modafinil has shown promise. It is generally better tolerated than older options and does not carry the same risk of psychiatric or heart-related side effects.
Sleepwalking and Parasomnia
Parasomnia refers to unusual or disruptive behaviours that happen during sleep. Sleepwalking is the most common form of parasomnia. It involves getting up and moving around while still asleep, with no memory of it afterward.
Sleepwalking is far more common in children than in adults. It typically affects children between the ages of 6 and 12 and usually disappears naturally by adolescence. In fact, roughly 6% of children sleepwalk before the age of 15. Adults can also sleepwalk, particularly during periods of high stress or emotional tension.
What Happens During Sleepwalking?
Sleepwalking occurs during the deep stages of non-REM sleep — specifically stages 3 and 4. Experts currently understand it as an “incomplete awakening” of the brain. The parts of the brain that control movement become active, but the parts that form memories remain asleep.
During a sleepwalking episode, a person may appear to wake up. They might get dressed, walk around, open doors, or carry out other complex actions. After a few minutes, they either truly wake up or return to bed on their own — with no memory of what happened. It is not helpful, and generally not necessary, to wake a sleepwalker.
Keeping Sleepwalkers Safe
Sleepwalking is generally a harmless condition. It does not usually require medication. However, safety is the top priority. Here are some simple steps to reduce the risk of injury during a sleepwalking episode:
Keep bedroom doors and windows closed and locked at night.
Remove sharp objects or tripping hazards from the bedroom and hallways.
Consider a door alarm to alert you if a child leaves their room.
Keep the sleeping environment on a ground floor if possible.
In very rare cases, a doctor may recommend medication if sleepwalking episodes are frequent or pose a serious safety risk. However, this is the exception rather than the rule.
Sleep Disorders in Children
Children experience sleep disorders differently from adults. Sleepwalking and night terrors are more common in younger children. Many of these conditions improve naturally with age and do not require treatment beyond reassurance and safety measures.
In addition, children who are overtired can actually become hyperactive rather than sleepy — which sometimes leads parents to miss the signs of a sleep problem. If your child regularly has trouble sleeping or shows unusual behaviours at night, speak with your family doctor or paediatrician.
For more information on healthy sleep habits across all ages, the World Health Organization’s guidance on healthy lifestyles offers a broader context for how rest fits into overall health.
When to See a Doctor
Many sleep problems can be managed with lifestyle changes. However, some situations call for professional support. You should speak with your family doctor or visit a walk-in clinic if:
Your sleep problems have lasted more than a few weeks.
You feel exhausted during the day despite sleeping enough hours.
You experience sudden sleep attacks or episodes of muscle weakness.
A child in your home sleepwalks frequently or is at risk of injury.
Your sleep problems are affecting your work, relationships, or mental health.
You are considering taking sleep medications for more than a short period.
Your provincial health plan covers visits to your family doctor for sleep-related concerns. If you do not have a family doctor, a walk-in clinic can be a good first step. From there, you may be referred to a sleep specialist or a mental health professional depending on your needs. As always, speak with a qualified healthcare provider before making changes to your medication or treatment plan.
Frequently Asked Questions About Sleep Disorders
What are the most common sleep disorders in Canada?
The most common sleep disorders in Canada include insomnia, sleep apnea, and restless leg syndrome. Insomnia — difficulty falling or staying asleep — is especially widespread, affecting people of all ages. If you regularly struggle with sleep, your family doctor is a great starting point for help.
How do I know if I have a sleep disorder?
Signs of a sleep disorder include regularly waking up feeling unrefreshed, struggling to fall asleep most nights, or feeling excessively sleepy during the day. Unusual behaviours during sleep — like sleepwalking — can also indicate a sleep disorder. A doctor can help you identify the specific problem and find the right treatment.
Can sleep disorders be treated without medication?
Yes, many sleep disorders respond well to non-medication approaches. Good sleep hygiene, stress management, and cognitive behavioural therapy are all effective for insomnia and other sleep disorders. Medication can help in the short term, but lifestyle changes often produce better long-term results.
Is sleepwalking dangerous?
Sleepwalking itself is not dangerous, but it can lead to accidental injury if the environment is not safe. The main concern with sleepwalking is that a person may fall, open windows, or leave the home while unaware. Simple safety measures — like locking doors and clearing pathways — are usually enough to manage the risk.
What is the difference between insomnia and hypersomnia?
Insomnia means you have trouble getting enough sleep, while hypersomnia means you sleep too much or feel excessively sleepy despite adequate rest. Both are types of sleep disorders and can be linked to stress, mental health conditions, or other medical issues. A healthcare provider can help determine which condition you are experiencing.
When should I see a doctor about my sleep problems?
You should see a doctor if your sleep problems last more than a few weeks, affect your daily functioning, or involve unusual behaviours like sleepwalking. In Canada, your family doctor or a walk-in clinic can assess your sleep disorder and refer you to a specialist if needed. Do not wait too long — chronic sleep problems can affect your physical and mental health over time.
Key Takeaways
Sleep disorders include insomnia (too little sleep), hypersomnia (too much sleep), and parasomnia (unusual sleep behaviours like sleepwalking).
Insomnia can be short-term (acute) or long-term (chronic) and is often linked to stress, anxiety, or depression.
Hypersomnia may be a sign of an underlying medical or psychological condition and should be assessed by a doctor.
Sleepwalking is most common in children aged 6 to 12 and usually resolves on its own. Safety precautions are the most important response.
Simple sleep habits — like a consistent bedtime and limiting screens before bed — can significantly improve sleep quality.
Sleep medications can help short-term but carry risks with long-term use. Always follow your doctor’s advice.
Canadian patients can speak with their family doctor or visit a walk-in clinic. Coverage for sleep-related consultations is generally included in provincial health plans.
