
Moaning in your sleep could be a symptom of catathrenia, a sleep disorder that causes you to moan, groan, or make other vocalizations while asleep. The exact cause of catathrenia is unknown, but it is believed to be related to individual factors like dysfunctional neurons in the brain, small upper airways, small jaws, limited airflow upon exhale, and low-diversity salivary microbiota. Catathrenia is typically diagnosed through sleep studies and can be treated with CPAP machines, oral appliances, and surgery. If you are concerned about moaning in your sleep, it is recommended to consult a healthcare professional for proper evaluation and management.
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What You'll Learn
- Catathrenia: a sleep disorder causing moaning, groaning, or humming while asleep
- Stress and anxiety: vocalisations may be influenced by stress and anxiety
- Nocturnal seizures: moaning may be a symptom of nocturnal seizures
- Genetics: sleep moaning may have a genetic component
- Treatment: options include CPAP machines, oral appliances, and surgery

Catathrenia: a sleep disorder causing moaning, groaning, or humming while asleep
Moaning in your sleep could be a sign of a rare sleep disorder called catathrenia. Catathrenia is a sleep-related breathing disorder characterised by loud groaning, moaning, or humming while sleeping. The exact prevalence of catathrenia is unknown, but it is considered rare, with some studies reporting that it affects 0.17% of people with sleep problems in Japan and 0.4% in Norway.
Catathrenia typically occurs during REM sleep, but it can also happen during non-REM sleep. The primary symptom is a moaning or groaning sound during sleep that the sleeper does not realise they are making. These sounds usually last between two and 49 seconds and can be short or long vocalisations of the same letter, typically an "a", "e", or "o" sound. The sounds are produced during a deep inhalation followed by a protracted exhalation, resulting in a respiratory pattern resembling central apnoeas. The sleeper may also experience side effects such as a sore throat, fatigue, and dizziness upon waking.
The exact cause of catathrenia is unknown, but it is believed to be associated with malfunctioning neurons in the brain's respiratory centre, causing prolonged exhaling. There may also be a genetic component, as people with catathrenia often report having family members who exhibit similar behaviours. Stress and anxiety can also contribute to moaning during sleep, as emotional states during waking hours can carry over into dreams.
Treatment options are available for catathrenia, including CPAP therapy, oral appliances, and tonsillectomy surgeries. Practising stress-reducing techniques, such as mindfulness, meditation, or yoga, can also help alleviate anxiety that may contribute to moaning during sleep. If you are concerned about moaning in your sleep, it is recommended to consult a healthcare professional for proper evaluation and management.
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Stress and anxiety: vocalisations may be influenced by stress and anxiety
Moaning in your sleep may be influenced by stress and anxiety. Stress and anxiety can impact your sleep behaviour by influencing the content of your dreams, which may, in turn, lead to vocalisations during sleep. For instance, if you dream about something intense or emotionally charged, you may make audible expressions during sleep.
Stress and anxiety can be managed through various techniques such as mindfulness, meditation, yoga, and exercise. These practices can help alleviate anxiety and improve your overall sleep quality. Additionally, limiting screen time and avoiding caffeine and alcohol before bed can also contribute to better sleep hygiene and reduced anxiety.
If you experience persistent symptoms or concerns about your sleep patterns, it is recommended to consult a healthcare professional for proper evaluation and management. They can help rule out any underlying medical conditions that might be affecting your sleep and provide guidance on improving your sleep quality.
While the exact cause of moaning in sleep is not fully understood, it is often associated with a rare sleep disorder called catathrenia. Catathrenia involves moaning, groaning, or making other vocalisations during sleep, typically during the exhale. It can last for a few seconds up to about a minute and usually occurs during REM sleep, although it can also happen during non-REM sleep.
Catathrenia is believed to be related to individual factors such as dysfunctional neurons in the part of the brain that controls breathing, small upper airways, small jaws, and limited airflow upon exhale. Treatment options for catathrenia include CPAP therapy, oral appliances, and, in some cases, surgery.
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Nocturnal seizures: moaning may be a symptom of nocturnal seizures
Moaning in your sleep could be due to a rare sleep disorder called catathrenia, which is characterised by groaning or moaning while sleeping. It is a sleep-related breathing disorder that causes moaning or groaning during sleep, particularly during exhalation. The exact cause of catathrenia is unknown, but it is believed to be associated with malfunctioning neurons in the brain's respiratory centre, leading to prolonged exhalation and vocal cord vibrations, resulting in moaning sounds.
However, it is important to consider other potential causes of moaning during sleep. Nocturnal seizures, for instance, can manifest as vocalizations during sleep. Epilepsy, specifically nocturnal frontal lobe epilepsy (NFLE) and its autosomal dominant variant (ADNFLE), can cause seizures while sleeping, sometimes accompanied by moaning, gasping, or grunting sounds. These seizures can be intense and may include sudden, repetitive movements.
Additionally, stress and anxiety can influence dreams and contribute to vocalizations during sleep. Addressing these underlying factors through stress-reducing techniques like mindfulness, meditation, or yoga can help alleviate moaning caused by psychological factors.
If you are concerned about moaning in your sleep, it is recommended to consult a healthcare professional. They can help rule out or manage any medical conditions that might be affecting your sleep and provide guidance on improving your sleep quality.
In summary, moaning in your sleep could be a symptom of nocturnal seizures or other medical conditions. It is important to consult a healthcare professional for a proper evaluation and management plan to improve your sleep quality and address any underlying causes.
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Genetics: sleep moaning may have a genetic component
Sleep moaning, or catathrenia, is a sleep disorder that causes loud, involuntary groaning, moaning, and whimpering during sleep. While the exact cause of catathrenia is unknown, it is believed to be related to malfunctioning neurons in the brain that cause prolonged exhaling. When a person exhales, their vocal cords vibrate, creating a moaning or groaning sound.
Genetics may play a role in the occurrence of catathrenia. One small study found that nearly 15% of participants with catathrenia had a family history of the disorder. If family members exhibit similar behaviours, it could suggest a genetic predisposition to sleep moaning. Additionally, catathrenia has been associated with small jaws and small upper airways, which may also have a genetic component.
Stress and anxiety can also contribute to vocalizations during sleep. Practising stress-reducing techniques such as mindfulness, meditation, or yoga can help alleviate anxiety and improve sleep quality. Addressing underlying medical conditions and consulting with a healthcare professional can also be beneficial in managing sleep moaning.
While occasional moaning during sleep is considered normal and benign, persistent or disruptive vocalizations may warrant further investigation. Treatment options are available to reduce catathrenia symptoms and improve sleep quality for both the affected individual and their sleeping partner. These treatments can include medication and changes to sleep routines, such as maintaining a consistent sleep schedule and creating a sleep environment that is cool, dark, and quiet.
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Treatment: options include CPAP machines, oral appliances, and surgery
Moaning in your sleep could be a sign of catathrenia, a sleep condition where one moans or groans while exhaling during sleep. If you suspect you might have catathrenia, it is advisable to consult a healthcare provider, as treatment options are available.
Treatment options include CPAP machines, oral appliances, and surgery. CPAP (continuous positive airway pressure) machines are often recommended as a treatment for improving airflow for people with sleep apnea. They involve attaching a tube and mask to your airway, which sends pressurised air through your airways to keep them open. While CPAP is effective, some users may find it challenging to use every night.
Oral appliances are another option for treating sleep apnea. These devices are worn in the mouth during sleep and work by pulling the jaw or tongue forward. Oral appliances are particularly useful for those with mild to moderate OSA who cannot use a CPAP machine. They are also easy to transport when travelling. However, oral appliances may not be suitable for those with severe OSA, and a sleep study is required to determine if this treatment option is right for you.
In terms of surgery, while it is mentioned as a potential treatment option, there is limited information available regarding its use for treating catathrenia or sleep moaning. It is recommended to consult a healthcare professional to discuss the most suitable treatment option for your specific needs.
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Frequently asked questions
Moaning in your sleep could be a symptom of catathrenia, a rare sleep disorder that causes you to moan, groan, hum, or make cracking sounds while asleep. The cause of catathrenia is not well understood, but it is believed to be related to individual factors like dysfunctional neurons in the brain, small upper airways, small jaws, limited airflow upon exhale, and low-diversity salivary microbiota.
Catathrenia is typically diagnosed through sleep studies (polysomnography), where the distinctive groaning sounds are observed and recorded. People with catathrenia usually do not realize they have the disorder, and it is often their family members or sleep partners who inform them about the sounds they make in their sleep.
Treatment options for catathrenia include CPAP therapy, oral appliances, and surgery. CPAP machines use pressurized air to keep airways open during sleep, reducing the chance of snoring and groaning. Oral appliances, similar to mouthguards, are worn at night to help keep the upper airway open. In more serious cases, surgery may be recommended to remove tonsils or adenoids, which can be combined with CPAP therapy or oral appliances for improved effectiveness.
Yes, stress and anxiety can influence the content of dreams and may contribute to vocalizations during sleep. Addressing underlying stress and anxiety through mindfulness, meditation, yoga, or cognitive behavioral therapy may help alleviate moaning during sleep.
Moaning in sleep can also be related to dream-induced vocalizations during the rapid eye movement (REM) stage of sleep, when vivid dreaming occurs. Intense or emotionally charged dreams can manifest as audible expressions during sleep.




