The Down Side of Oversleeping: How Too Much Sleep Affects Your Health

6 minutes

The Down Side of Oversleeping: How Too Much Sleep Affects Your Health

img author
R&D Engineer, Haluk Çelik

R&D Engineer, Haluk Çelik

We all know that getting enough sleep is important for our overall well-being, but did you know that too much sleep can also be a concern? While the recommended amount of sleep varies from person to person, getting the right amount of sleep can have amazing benefits for both your mind and body. 

Adequate sleep can improve your memory, mood, and cognitive function, among other benefits. However, there is such a thing as too much sleep. Oversleeping can have adverse effects on your health, including physical and mental health issues. In this blog post, let's discuss the risks of oversleeping and how too much sleep affects your health.

What Is Oversleeping?

Oversleeping is defined as sleeping for longer than the recommended amount of time. Typically, adults need seven to nine hours of sleep. While the occasional night of oversleeping may not be harmful, regularly sleeping for much longer than necessary can have adverse effects on your health.

Risks of oversleeping

One of the significant risks of oversleeping is an increased risk of obesity. Studies have shown that people who sleep more than nine hours a night are more likely to be overweight or obese. The reasons for this are not fully understood, but it is thought that oversleeping can disrupt the body's natural metabolic rate, leading to weight gain.

Oversleeping has also been linked to an increased risk of type 2 diabetes. One study found that people who slept for more than nine hours a night had a 50% higher risk of developing type 2 diabetes compared to those who slept for seven to eight hours a night. The exact underlying reason for this is not clear, but it is thought that oversleeping may affect insulin sensitivity and glucose metabolism.

Excessive sleep has also been linked to the risk of developing cardiovascular disease. People who regularly sleep more than nine hours a night are more likely to develop high blood pressure, heart disease, and stroke. The reasons for this are not fully understood, but oversleeping may be affecting the body's natural rhythms and disrupting its circadian clock, leading to cardiovascular problems.

Sleep is essential for our physical health, but it is also equally important for our mental health. Oversleeping has been linked to a range of mental health problems, including depression, and cognitive impairment. In fact, people who sleep for more than nine hours a night are more likely to develop symptoms of depression. This may be because the body's natural rhythms lead to a lack of motivation and energy. In addition, oversleeping has been linked to cognitive impairment, including difficulties with memory, attention, and decision-making.

What’s Worse: Not Getting Enough Sleep or Oversleeping?

Both under-sleeping and oversleeping can have negative effects on your health and well-being, but the severity of these effects may vary depending on the individual and the specific circumstances. Let's explore the potential consequences of each.


Fatigue and lack of energy: Consistently not getting enough sleep can lead to daytime sleepiness, decreased alertness, and a general lack of energy.

Impaired cognitive function: Sleep deprivation can affect your ability to concentrate, make decisions, and solve problems. It may also impair your ability to form new memories and your memory recall.

Increased risk of accidents: Being sleep-deprived can impair your reaction time, coordination, and judgment, increasing the likelihood of accidents or errors.

Weakened immune system: Lack of adequate sleep can compromise your immune system, making you more susceptible to illnesses and infections.

Mood disturbances: Sleep deprivation can contribute to irritability, mood swings, and an increased risk of developing mental health conditions such as anxiety and depression.

Increased risk of chronic conditions: Chronic sleep deprivation has been associated with an increased risk of developing obesity, diabetes, cardiovascular disease, and certain types of cancer.


Daytime grogginess: Excessive sleep can lead to feelings of grogginess and disorientation throughout the day, which can affect your productivity and overall well-being.

Sleep inertia: Oversleeping can result in sleep inertia, a state of prolonged grogginess and impaired cognitive function that can last for a while after waking up.

Increased risk of obesity: Studies have suggested a link between oversleeping and an increased risk of obesity, possibly due to disruptions in metabolism and hormonal regulation.

Higher incidence of headaches: Oversleeping has been associated with an increased likelihood of experiencing headaches or migraines.

Mental health effects: Although the relationship is complex, some research has indicated that excessive sleep may be associated with an increased risk of depression and other mental health disorders.

Potential underlying health conditions: In some cases, excessive sleepiness can be a symptom of an underlying health condition, such as sleep apnea, depression, or certain neurological disorders.

How Much Sleep Do You Need?

The amount of sleep you need can vary depending on several factors, including age, individual differences, and overall health. For instance, infants need around 14-17 hours, school-age children need 9-11 hours, teenagers need 8-10 hours, and adults and older people need 7-8 hours sleep per day. 

It's important to note that these are general guidelines, and individual needs may vary. Factors such as lifestyle, physical activity, stress levels, and underlying health conditions can also influence your sleep requirements. Paying attention to your own body's signals and ensuring that you feel rested and alert during the day can help you determine whether you're getting enough sleep.

7 Useful Tips to Avoid Oversleeping

If you find yourself constantly oversleeping and want to avoid it, here are some tips that may help:

1. Establish a consistent sleep schedule: 

Set a regular sleep schedule and try to go to bed and wake up at the same time every day, even on weekends. This helps regulate your body's internal clock and promotes a consistent sleep-wake cycle.

2. Create a sleep-friendly environment: 

Make your bedroom conducive to sleep by ensuring that it's dark, quiet, and at a comfortable temperature. Remove electronic devices or use blue-light filters to minimize their impact on your sleep quality.

3. Limit daytime napping: 

If you're prone to oversleeping, try to limit daytime napping or avoid it altogether. If you nap, keep it short (around 20-30 minutes) and avoid napping too close to your regular bedtime.

4. Practice good sleep hygiene: 

Adopt healthy sleep habits by avoiding caffeine and stimulating activities close to bedtime, establishing a relaxing pre-sleep routine, and creating a comfortable sleep environment.

5. Manage stress: 

Excessive stress or anxiety can disrupt your sleep patterns. Try implementing stress management techniques like relaxation exercises, mindfulness, or engaging in calming activities before bed.

6. Limit screen time before bed: 

The blue light emitted by electronic devices can interfere with your sleep quality. Try to limit your exposure to screens (such as smartphones, tablets, or computers) at least an hour before bedtime.

7. Get regular exercise: 

Engaging in regular physical activity can promote better sleep quality. However, try to complete your exercise session several hours before bedtime, as exercising too close to bedtime can stimulate your body and have the opposite effect that you want before bed.

Remember, finding the right balance for your sleep needs is essential, and it may take some trial and error to determine what works best for you.

Back to blog
img author
R&D Engineer, Haluk Çelik

R&D Engineer, Haluk Çelik

Table of Contents

What Is Oversleeping?

What’s Worse: Not Getting Enough Sleep or Oversleeping?

How Much Sleep Do You Need?

7 Useful Tips to Avoid Oversleeping

Leave a comment

Please note, comments need to be approved before they are published.