
Throwing up in your sleep is usually a symptom of an underlying health issue. It can be caused by acid reflux, gastroesophageal reflux disease (GERD), asthma, allergies, a cold, or even certain foods. In children, vomiting during sleep can be due to a wet or dry cough, mouth breathing, or sleep apnea. While it is uncommon to throw up in your sleep without waking up, it is possible, especially if you are sedated or have an issue with your central nervous system. To prevent vomiting in your sleep, certain sleeping positions, herbal remedies, and products like the Reflux Guard Mattress Bed Wedge can help.
| Characteristics | Values |
|---|---|
| Possibility | It is possible to throw up in your sleep without knowing. However, it is rare as your gag reflex and instinct to protect your airway will usually wake you up. |
| Causes | Vomiting in sleep can be caused by acid reflux, gastroesophageal reflux disease (GERD), asthma, allergies, sleep apnea, dry throat, coughing, heavy meals, pregnancy, or other underlying health conditions. |
| Prevention | To prevent vomiting in sleep, one can adjust their sleeping position, use devices like Reflux Guard, or try natural remedies like ginger, peppermint oil, chamomile, fennel, and licorice tea. |
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What You'll Learn
- Acid reflux can cause vomiting in your sleep
- It's recommended to sleep on your left side to avoid acid reflux
- Asthma, allergies, and colds can cause coughing and vomiting in children
- Avoid caffeine and alcohol to reduce the risk of vomiting in your sleep
- Ginger and peppermint oil can help to reduce the risk of vomiting

Acid reflux can cause vomiting in your sleep
Throwing up in your sleep without knowing is possible, but it's not very likely unless you are sedated or have something wrong with your central nervous system. In most cases, your gag reflex and instinct to protect your airway will wake you up. However, acid reflux can cause vomiting in your sleep, and it is a common experience for people living with gastroesophageal reflux disease (GERD).
Acid reflux occurs when stomach acid rises into the oesophagus, causing heartburn and other symptoms. It can be caused by various factors, including the relaxation of the lower oesophageal sphincter (LES), which allows stomach acid to move back up into the oesophagus and irritate its lining. This can happen due to certain foods, large meals, bending over, smoking, or drinking alcohol. Gravity plays a crucial role in keeping acid down, so lying flat in bed can worsen acid reflux.
GERD is a chronic condition characterised by frequent acid reflux. It can cause choking while sleeping, as stomach contents, including stomach acids and partially digested food, are regurgitated back into the oesophagus and throat. This can lead to coughing, which can further trigger vomiting. People with GERD may also develop laryngopharyngeal reflux (LPR), where acid travels into the throat, causing swelling, hoarseness, and vocal cord growths. Additionally, acid particles in the airways can aggravate asthma or cause asthma-like symptoms, including coughing and breathing difficulties.
To manage acid reflux and GERD symptoms before bedtime, it is recommended to avoid trigger foods, eat smaller meals earlier in the evening, wear loose-fitting clothing, quit smoking, and maintain a healthy weight. Sleeping with your head elevated can also help reduce acid reflux at night by utilising gravity to keep stomach contents down. Making these lifestyle changes and following home remedies can help improve sleep quality and prevent ongoing irritation of the oesophagus caused by acid reflux.
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It's recommended to sleep on your left side to avoid acid reflux
Throwing up in your sleep without waking up is unlikely, even if you are sober. Your brain knows when it's time to throw up, and it will wake you up to protect your airway. However, it is possible that you might be sedated or have something wrong with your central nervous system, which could prevent you from waking up.
If you are experiencing acid reflux, it is recommended to sleep on your left side. This is due to the anatomical structure of the stomach and esophagus. When you lie on your left side, the stomach is positioned below the esophagus, reducing the risk of acid reflux. This is because stomach acid is less likely to flow back up into your throat and cause choking or discomfort. Additionally, sleeping with your torso elevated can also help reduce acid reflux by using gravity to keep stomach contents down.
Gastroesophageal reflux disease (GERD) is a condition where stomach contents, including stomach acids and partially digested food, are regurgitated back into the esophagus and throat. This can lead to choking, coughing, and heartburn, which can disrupt sleep and negatively impact overall health. GERD can recur due to the dysfunction of the esophageal muscle ring and personal lifestyle habits, even after treatment.
A study published in the American Journal of Gastroenterology in February 2022 found that sleeping on the left side reduces nocturnal GERD most effectively compared to sleeping on the back or right side. The esophagus and its muscle ring are positioned higher than the stomach when lying on the left side, allowing acid to exit the esophagus more quickly. This reduces the time the esophagus is exposed to acid, which can help reduce heartburn pain and the risk of tissue damage and other serious problems.
Acid reflux can also occur in children and can be caused by various factors such as asthma, a cold, allergies, or certain foods. If your child is experiencing acid reflux, it is recommended to avoid foods and drinks before bedtime that may trigger acid reflux and to treat any underlying health conditions that might be causing the symptoms.
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Asthma, allergies, and colds can cause coughing and vomiting in children
Throwing up in your sleep is usually caused by acid reflux, gastroesophageal reflux disease (GERD), or choking. It is unlikely to throw up in your sleep without waking up, as your brain will almost always wake you up when it's time to vomit, to protect your airway.
Allergies to dust mites, pet dander, pollen, or mold can also trigger asthma symptoms. Viral infections such as the common cold can cause similar issues, with mucus from the nose and sinuses draining down the throat and triggering coughing and vomiting. A dry cough may also be exacerbated by breathing through the mouth while sleeping, leading to an irritated throat and more coughing.
If your child is coughing and vomiting, it is important to soothe the cough and treat any underlying health issues. Home remedies include avoiding foods and drinks that may trigger acid reflux, allergens such as dust, pollen, and second-hand smoke, and ensuring your child is well-hydrated. If your child has asthma, an asthma action plan from your doctor can help you monitor symptoms and choose the right asthma medicines.
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Avoid caffeine and alcohol to reduce the risk of vomiting in your sleep
Throwing up in your sleep is usually a symptom of an underlying condition. Some of the most common causes include acid reflux, gastroesophageal reflux disease (GERD), anxiety, medication side effects, peptic ulcers, or pregnancy. In children, vomiting at night can be caused by asthma, a cold, allergies, or sleep apnea.
If you are experiencing vomiting in your sleep, it is important to consult a healthcare professional to determine the best treatment for your specific condition. In the meantime, there are some general measures that you can take to reduce the risk of vomiting in your sleep:
- Avoid caffeine and alcohol, especially before going to sleep. Increased consumption of these substances can worsen gastric problems and increase the likelihood of vomiting during the night.
- Adjust your sleeping position. Sleeping with your torso elevated helps to keep stomach acids from flowing back into the oesophagus. This can be achieved by raising the head of your bed about 6 to 12 inches or using a mattress wedge or extra pillows.
- Avoid eating large meals before bed and allow enough time for your food to properly digest. It is recommended to avoid eating 3 to 4 hours before sleeping.
- Avoid trigger foods such as spicy foods, fatty foods, chocolate, and citrus fruits.
- Treat any underlying conditions, such as allergies or asthma, that may be causing vomiting.
By following these suggestions, you can help reduce the risk of vomiting in your sleep and improve your overall sleep quality.
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Ginger and peppermint oil can help to reduce the risk of vomiting
Throwing up in your sleep without knowing is unlikely, as your gag reflex and instinct to protect your airway will usually wake you up. However, it is not impossible, especially if you are sedated or have an issue with your central nervous system.
If you are experiencing nausea, ginger and peppermint oil can help to reduce the risk of vomiting. Ginger root is a well-known remedy for nausea, and ginger oil can be diffused into the air with an oil diffuser, rubbed onto pressure points on your forehead and wrists, or even rubbed directly on your stomach. Ginger is also considered safe for pregnant women experiencing nausea.
Peppermint oil is another effective remedy for nausea. Its active compounds, including menthol and menthone, have muscle-relaxing properties that help to soothe the digestive muscles and reduce feelings of nausea. Peppermint oil can be used in a diffuser or added to a bowl of steaming water and inhaled. It can also be applied topically, but it must first be diluted with a carrier oil, such as coconut or olive oil, to avoid skin irritation or an allergic reaction.
Other essential oils that may help with nausea include spearmint, cardamom, lemon, and lavender. These oils can be used in a diffuser or mixed with a carrier oil and applied to the skin. Aromatherapy with these essential oils can be an effective way to treat nausea and vomiting, especially after surgery.
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Frequently asked questions
It is possible to throw up in your sleep, and you might not always wake up immediately. Your gag reflex and instinct to protect your airway will almost always wake you up.
Throwing up in your sleep can be caused by acid reflux, gastroesophageal reflux disease (GERD), asthma, allergies, or a cold. It can also be caused by the position you sleep in.
To prevent throwing up in your sleep, you can try sleeping with your head elevated or sleeping on your left side. You can also try natural herbal remedies such as ginger, peppermint oil, or herbal teas.
If you throw up in your sleep, it is important to address any underlying health conditions that might be causing it. Consult a healthcare professional to determine the best treatment for your specific condition.
Some signs that someone might throw up in their sleep include coughing, choking, or heartburn. These symptoms can also disrupt sleep and negatively impact overall health.











































