Miya Pearson
Oversleeping is generally defined as sleeping for more than nine hours in a 24-hour period. While occasional oversleeping is normal and can be a result of recovering from a busy schedule or illness, consistent oversleeping can indicate an underlying health issue. It is associated with several health risks, including obesity, cardiovascular disease, type 2 diabetes, and an increased risk of stroke. People who oversleep often experience symptoms similar to sleep deprivation, such as excessive sleepiness, headaches, and difficulty concentrating. Additionally, oversleeping can be a sign of sleep disorders or conditions like sleep apnea, idiopathic hypersomnia, or restless leg syndrome. If you find yourself regularly oversleeping, it is recommended to consult a healthcare professional to rule out any potential underlying causes and improve your sleep habits.
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What You'll Learn
Increased risk of stroke and heart disease
Oversleeping can have several negative effects on your body, and it is associated with many health problems. While the exact amount of sleep required varies from person to person, adults are generally recommended to sleep for seven to nine hours each night. If you find yourself consistently sleeping longer than this and still feeling tired, it may indicate an underlying health issue.
One of the most concerning potential consequences of oversleeping is the increased risk of stroke and heart disease. Several studies have found a link between excessive sleep and an elevated risk of stroke. For example, one study of 32,000 adults found that those who slept for nine or more hours each night had a 23% higher risk of stroke than those sleeping less than eight hours. Similarly, another study concluded that sleeping more than nine hours a night increased the risk for all types of strokes, and this risk was even higher for those who also took 90-minute naps during the day.
The reasons for this association are not entirely clear, but several theories have been proposed. One theory suggests that increased inflammation, a sedentary lifestyle, and underlying sleep disorders, which are all risk factors for stroke, may play a role. Additionally, poor sleep quality, often associated with longer sleep, can impact the body's metabolic processes and hormonal balance, increasing the risk of type 2 diabetes and, consequently, the risk of stroke and heart disease.
Furthermore, daytime sleepiness has been linked to an increased risk of cardiovascular disease (CVD) and coronary heart disease (CHD). Women who reported experiencing daytime sleepiness almost every day had a 58% higher risk of CVD, according to one study. However, it's important to note that this study also found that controlling for sleep variables and metabolic risk factors eliminated the independent association, suggesting that daytime sleepiness may be a symptom of inadequate or disrupted sleep, which are the actual risk factors for CVD.
If you find yourself consistently oversleeping, it is recommended that you consult a healthcare professional to rule out any underlying sleep disorders or medical conditions.
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Obesity
Sleep loss and obesity are closely linked. Studies have shown that getting less than seven hours of sleep per night can lead to weight gain. Sleep deprivation creates a hormone imbalance, altering the production of leptin and ghrelin, which regulate appetite. This results in increased feelings of hunger and a higher likelihood of overeating. Sleep loss is also associated with elevated cortisol levels and growth hormone deficiency, both linked to obesity.
The relationship between sleep and obesity is bidirectional. Obesity can cause sleep disturbances, which further impact weight gain. Excess weight accumulation can affect sleep quality by disrupting sleep-wake cycles and metabolism. Obstructive sleep apnea (OSA), a common disorder among obese individuals, occurs when the airway is partially or fully blocked, leading to snoring and temporary breathing cessation. OSA can cause daytime exhaustion, even without the individual's knowledge, increasing the risk of weight gain.
Additionally, obesity-related health conditions, such as gastroesophageal reflux disease (GERD), osteoarthritis, and asthma, can disrupt sleep. The physical effects of carrying excess weight can also impact sleep quality, with larger individuals sometimes finding it more comfortable to sleep on their sides. Extra body fat may put pressure on the neck, especially when lying down, and can lead to snoring and OSA.
Poor sleep can lead to decreased physical activity and increased intake of high-calorie, fatty, and carbohydrate-rich foods, further contributing to weight gain. Sleep deprivation dulls activity in the frontal lobe, impairing decision-making and self-control, making it harder to make healthy choices.
Breaking this cycle requires addressing both sleep and weight management. Maintaining a consistent sleep schedule, creating a restful environment, limiting daytime naps, incorporating physical activity, and managing stress can improve sleep quality. Additionally, treating underlying sleep disorders, such as OSA and GERD, can help improve sleep and facilitate weight loss.
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Depression
People with depression often experience disruptions to their circadian rhythm, their body's internal clock. This can result in a delayed sleep phase, making it difficult to wake up in the morning and leading to excessive sleeping during the day. Sleep apnea, a condition characterised by repeated breathing interruptions during sleep, is also commonly associated with depression. The fragmented and disrupted sleep caused by sleep apnea can interfere with the deeper stages of sleep, resulting in exhaustion even after an adequate number of hours of sleep.
The bidirectional relationship between depression and sleep means that addressing sleep issues is crucial when dealing with depression. Cognitive behavioural therapy for insomnia (CBT-I), in conjunction with depression treatment, has been found to improve sleep in people with depression and may increase the likelihood of remission. Additionally, regular exercise has been shown to significantly reduce symptoms of depression, making it an excellent tool for promoting sleep and mental health.
It is important to note that the amount of sleep needed varies from person to person and can change over time. While the recommended sleep duration for adults is generally between seven and nine hours, oversleeping can have negative health consequences. People who consistently sleep more than nine or ten hours a night have been found to have significantly higher death rates and an increased risk for various health issues, including diabetes, heart disease, stroke, fertility problems, cognitive decline, and obesity.
If you or someone you know is experiencing symptoms of depression, it is essential to seek professional help. A healthcare professional can provide guidance, support, and appropriate treatments to improve both sleep and overall mental well-being.
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Back pain
Oversleeping can cause back pain, especially in people with pre-existing back problems or underlying conditions such as arthritis or sciatica. During sleep, the body can become stiff and achy due to inactivity and reduced blood flow. Certain sleep positions, such as lying on your stomach, can also cause back pain by putting extra strain on your back and neck. Sleeping on your back for extended periods can cause muscle fatigue in the muscles supporting your back, leading to tight muscles and back pain when you wake up.
Poor sleeping positions can put pressure on your spine, causing its natural curve to flatten. Sleeping on your stomach can cause your neck to twist out of alignment with the rest of your spine, and your lower abdomen may sink more deeply than the rest of your spine, uncomfortably stretching your back. This can be mitigated by sleeping without a head pillow and placing a thin pillow beneath your lower abdomen. Back sleeping can also lead to back pain if you do not support your spine's natural curvature, for example, by placing a pillow under your knees. Side sleeping is considered the best position for avoiding back pain, although it is still possible to press your spine out of alignment.
If you are experiencing back pain, you may be able to relieve it by stretching or performing yoga poses. You should also consider your mattress, as sleeping on an old, unsupportive mattress can cause back pain. A mattress that is too soft or too firm can cause you to sleep in a position that goes against the natural curve of your spine, leading to discomfort and back pain. Replacing an old mattress can improve sleep quality, reduce back pain, and decrease stress symptoms.
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Sleep disorders
Sleep is critical to both physical and mental health. However, oversleeping can have negative effects on the body and overall health. While the exact amount of sleep required varies from person to person, adults should typically aim for seven to nine hours of sleep each night. If you find yourself consistently sleeping longer than this range and still feeling tired, it may be a sign of an underlying health issue or a sleep disorder.
- Insomnia: The most common sleep disorder, insomnia involves difficulty falling and staying asleep. To be diagnosed with insomnia disorder, these difficulties must occur at least three nights a week for three months and cause significant distress or problems in daily functioning.
- Obstructive sleep apnea: A breathing disorder characterised by brief pauses in breathing during sleep.
- Parasomnias: Unusual behaviours during sleep, such as walking, talking, or eating.
- Narcolepsy: Extreme daytime sleepiness, categorised as a type of hypersomnia.
- Restless leg syndrome (RLS) or bruxism: RLS causes an overwhelming urge to move the legs while at rest, while bruxism involves teeth grinding or clenching during sleep.
- Circadian rhythm disorders: Disorders that disrupt the body's natural sleep-wake cycle, making it difficult to sleep and wake at the right times. Delayed sleep phase syndrome is an example, keeping people awake into the early hours.
Treatments for sleep disorders vary depending on the specific disorder. They may include good sleep habits, lifestyle changes, cognitive behavioural therapy, relaxation techniques, medication, and the use of CPAP machines or natural products.
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Frequently asked questions
Experts define oversleeping as sleeping more than nine hours in a 24-hour period.
Oversleeping can lead to health problems, including obesity, cardiovascular disease, and type 2 diabetes. It can also cause back pain, especially in people with underlying conditions like arthritis or sciatica. People who oversleep frequently may experience excessive sleepiness, headaches, and difficulty focusing on daily tasks or activities.
If you are an oversleeper, it is recommended to check in with your health care provider. They may recommend a sleep study to rule out sleep disorders or other underlying health issues. You can also implement healthy sleep tips, such as setting a regular sleep schedule and avoiding caffeine and electronics before bed.
If you are regularly sleeping more than nine hours and still feeling tired, it may be a sign of an underlying health issue. Other signs include excessive sleepiness, headaches, and difficulty focusing on daily tasks.
