Evie Summers
Feeling sleepy during the day can be a symptom of hypersomnia, a condition that causes people to feel sleepy during the day despite getting a healthy amount of rest at night. People with hypersomnia may fall asleep several times during the day, and experience symptoms of anxiety, low energy, and memory problems. Hypersomnia can be caused by underlying health conditions, such as depression, sleep disorders, or chronic illnesses, as well as certain medications, substances, and lifestyle factors. If you are experiencing excessive daytime sleepiness, it is important to speak to a healthcare professional to determine the underlying cause and seek appropriate treatment.
| Characteristics | Values |
|---|---|
| Condition | Hypersomnia, Excessive Daytime Sleepiness (EDS), Long Sleeping |
| Symptoms | Extreme sleepiness, long sleep duration, daytime naps, anxiety, low energy, memory problems, headaches, grogginess, increased risk of accidents and injuries, sleep inertia, sleep attacks |
| Causes | Sleep apnea, alcohol, prescription medications, underlying health conditions (e.g., depression, chronic pain, diabetes, fibromyalgia, hypothyroidism, anxiety, sleep disorders, chronic illness), lifestyle factors, age, sleep debt |
| Treatment | Medication, therapy, sleep habit adjustments, lifestyle changes, at-home remedies, stimulant medication (e.g., sodium oxybate), practising good sleep hygiene |
| Impact | Interference with work, social life, and personal relationships; higher risk of death, heart disease, and stroke |
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What You'll Learn
Hypersomnia
The main symptom of hypersomnia is EDS, which has occurred for at least three months prior to diagnosis. Other symptoms include "sleep drunkenness", which is a difficulty transitioning from sleep to wakefulness. Those experiencing sleep drunkenness may wake up feeling confused, disoriented, and irritable, and may fall back asleep multiple times. People with hypersomnia often report that daytime naps are unrefreshing and do not make them feel more alert or rested.
Treatment for hypersomnia depends on its cause and may include medication, therapy, and changes to sleep habits. Those diagnosed with hypersomnia may need to inform their local Driver and Vehicle Licensing Agency (DVLA) and may be restricted from driving.
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Sleep inertia
The most common symptom of sleep inertia is grogginess, but people are also likely to experience impaired cognitive ability, visual attention, and spatial memory. The symptoms are most noticeable upon waking from a lengthy sleep period or naps over 30 minutes, but they do fade over time. The duration of the symptoms varies but is primarily expressed during the first 15 to 60 minutes after waking up and can potentially extend for several hours.
The biological reason for sleep inertia is unknown. However, researchers have hypothesized that sleep inertia is a protective mechanism that helps maintain sleep during moments of unwanted wakings. Adenosine, a nucleic acid compound found in the brain, plays a pivotal role in sleep and wakefulness. Research suggests that sleep inertia could be caused by high levels of adenosine upon waking. The accuracy of sensory and motor functioning is more impaired by sleep inertia compared to sheer speed. Abrupt awakening during stage 3 sleep, slow-wave sleep (SWS), produces more sleep inertia than awakening during sleep stages 1, 2 or REM sleep.
There has been a great deal of research into potential methods to relieve the effects of sleep inertia. Caffeine is a widely-consumed stimulant compound found in tea, coffee, soft drinks, and chocolate. Previous research has shown that consuming caffeine prior to a short nap can alleviate the effects of sleep inertia. The natural light provided by the sunrise may also contribute to a reduction in sleep inertia effects.
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Sleep debt
There are several ways to address sleep debt and improve your sleep hygiene. Firstly, it is important to determine how much sleep your body requires and prioritize getting sufficient rest. Maintaining a consistent sleep schedule is crucial for ensuring you get the necessary amount of sleep. Napping or sleeping in on weekends can help make up for lost sleep, but it may take several days to recover from the negative effects of sleep loss. Additionally, developing a nighttime routine, reconsidering your daytime schedule, and creating a sleep-friendly environment can all contribute to reducing sleep debt.
It is worth noting that hypersomnia, a condition characterized by excessive daytime sleepiness, is different from sleep debt. People with hypersomnia may fall asleep repeatedly during the day, even after getting a full night's rest. This condition can impact an individual's ability to work, socialize, and maintain relationships. If you suspect you have hypersomnia, it is important to consult a healthcare provider for diagnosis and treatment.
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Sleep disorders
Sleep is essential for good health, but both a lack of sleep and too much sleep can cause health problems. Oversleeping is generally defined as sleeping for more than nine hours in a 24-hour period. While occasional oversleeping is usually not a cause for concern, chronic oversleeping can be a symptom of an underlying health condition, such as depression, anxiety, diabetes, fibromyalgia, hypothyroidism, heart disease, or a sleep disorder.
Causes of Oversleeping
There are many potential causes of oversleeping. It could be a result of sleep deprivation, a hectic schedule, or a particularly physically or mentally strenuous activity or period. It could also be caused by certain medications, substances such as alcohol, or a change in prescription. In addition, lifestyle factors can play a role in oversleeping, such as having limited time for sleep due to the nature of your job.
There are several sleep disorders that can cause oversleeping. These include:
- Hypersomnia: This is a condition that makes you feel extremely sleepy during the day, even after getting a healthy amount of sleep at night. People with hypersomnia may sleep for unusually long periods and experience symptoms of anxiety, low energy, and memory problems.
- Idiopathic hypersomnia: This is a type of hypersomnia where there is no known cause. People with this condition wake up feeling confused or irritable (known as sleep inertia) and not refreshed.
- Obstructive sleep apnea (OSA): This disorder causes interruptions in breathing while asleep, which can lead to snoring or breathing pauses. It disrupts the normal sleep cycle, leading to an increased need for sleep.
- Narcolepsy: People with narcolepsy experience sleep attacks, or overpowering urges to sleep, throughout the day. There are two types of narcolepsy, with secondary narcolepsy caused by injury to the hypothalamus.
- Circadian rhythm sleep-wake disorders: These disorders are related to misalignments between sleep-wake cycles and light-darkness cycles.
If you are concerned about oversleeping, it is important to speak to a healthcare professional. They may recommend keeping a sleep diary, adjusting your medication, or making lifestyle changes to improve your sleep hygiene.
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Health risks
Oversleeping or excessive daytime sleepiness can be a symptom of an underlying health condition. It is important to speak with a healthcare professional if you think certain medications, substances, or lifestyle factors are causing you to oversleep.
- Anxiety and Low Energy: Temporary oversleeping can cause temporary anxiety, fogginess, and low energy.
- Accidents and Injuries: Conditions such as hypersomnia can make it hard to control when you fall asleep, leading to a higher risk of accidents and injuries.
- Headaches: Sleeping longer than usual can cause headaches due to the effect on certain neurotransmitters in the brain, including serotonin.
- Depression: While insomnia is more commonly linked to depression, roughly 15% of people with depression sleep too much.
- Diabetes and Heart Disease: Oversleeping has been linked to an increased risk of diabetes and heart disease. One study found that C-reactive protein (CRP), a marker of inflammation in the body, was higher in people who slept more than seven hours, indicating an increased risk of heart attack.
- Increased Risk of Death: A meta-analysis found that the risk of dying from any cause increased with longer sleep times, especially from heart disease and stroke.
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Frequently asked questions
Hypersomnia, or excessive daytime sleepiness, is a condition where people feel sleepy during the day and fall asleep repeatedly, even after getting a healthy amount of rest at night.
People with hypersomnia may experience symptoms like anxiety, low energy, and memory problems. They may also have trouble staying awake during the day and might fall asleep without meaning to.
Hypersomnia can be caused by various factors, including certain medications, alcohol consumption, underlying health conditions such as depression or anxiety, and sleep disorders like sleep apnea or narcolepsy.
Treatment for hypersomnia depends on the underlying cause. It may include medications to help stay awake, improving sleep habits, therapy, or treating any underlying health conditions. Lifestyle changes, such as limiting caffeine and alcohol consumption before bed, can also help regulate sleep.
Sleeping too much during the day, or hypersomnia, can impact your work, social life, and personal relationships. It can also increase your risk of accidents and injuries. Additionally, chronic oversleeping has been linked to various health issues, including increased risk of death, diabetes, heart disease, and depression.
