Sleep-Related Eating Disorder (SRED): Understanding Nocturnal Binge Eating

Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 17, 2026

Quick Answer: What Is Sleep-Related Eating Disorder?

Sleep-related eating disorder is a sleep behavior in which a person binge eats while technically asleep, usually in the first few hours of the night, and most people have no memory of it. It is often triggered by an underlying sleep disorder, stress or medication side effects. Management treats the cause, improves sleep hygiene and secures the kitchen. [1]

What the research says

• Sleep-eating linked to sedatives looked different from primary SRED. In a retrospective review of 40 patients (30 with primary SRED and 10 with drug-induced SRED), the drug-induced group was older at onset (40 vs 26 years), more often had total amnesia for most episodes (75.0% vs 31.8%), and less often had a history of sleepwalking (10.0% vs 46.7%). Everyone in the drug-induced group took multiple sedatives, and their episodes resolved completely after the dose was reduced or the sedatives were stopped (Komada et al., Neuropsychiatric Disease and Treatment, 2016).

• Episodes do not always happen in the deepest sleep. A systematic review of 15 papers (7 descriptive studies, 6 case reports, and 2 observational studies, most at moderate or high risk of bias) found that eating episodes captured during a sleep study usually did not occur in deep stage 3 sleep, and that sleepwalking was much more common in people with SRED than in the general population. The authors noted that a sleep study is not necessary to diagnose SRED (Blaszczyk et al., Frontiers in Psychiatry, 2023).

What Is a Sleep-Related Eating Disorder?

SRED is classified as a parasomnia, a group of disruptive behaviors that happen during sleep. Unlike conscious late-night snacking, SRED involves preparing and eating food while in a state of sleep [1]. People usually find out indirectly, through dirty dishes, food smears on the counter, or reports from roommates and family. On waking, they have little or no memory of the event, so it can feel like it was only a dream.

This condition is more than a curiosity; it can be dangerous. Because the person is in an altered state of consciousness, they may use kitchen appliances unsafely or eat things that are not meant for eating. SRED often occurs together with other sleep disorders, such as sleepwalking or restless legs syndrome, and it is seen more often in women, with symptoms usually starting in the 20s [1].

What Are the Symptoms and Timing of SRED Episodes?

The main symptom is nocturnal binge eating: eating or drinking a large amount, often high-calorie food, in a short time while asleep. The next morning, many people have little appetite or feel full and skip breakfast. Some prepare unusual food combinations or eat raw meat, coffee grounds, or even toxic non-food items such as cigarette butts [1].

Episodes usually happen during the first few hours of sleep, in the non-rapid eye movement (NREM) stage, often as the brain moves from one sleep cycle to the next. They can occur now and then or every night, sometimes more than once a night. Waking someone during an episode is difficult, because they often look confused or as if in a trance [1].

Feature	Sleep-Related Eating Disorder (SRED)
Awareness	Little or no memory of the episode.
Food choice	Often high-calorie foods or non-food substances.
Timing	First few hours of sleep (NREM stage).
Consequences	Morning fullness, weight gain, and safety risks.

What Causes SRED and Who Is at Risk?

Experts do not know exactly why SRED happens, but several factors may contribute [1]. These include underlying mental health conditions such as anxiety, depression, or stress, and changes to daily routines such as quitting smoking or starting a strict diet. SRED is also a known side effect of certain medications, particularly sedative-hypnotics used for insomnia, benzodiazepines, and some psychiatric drugs.

Underlying sleep disorders also play a role. Circadian rhythm sleep disorders, narcolepsy, periodic limb movement disorder, restless legs syndrome, sleep apnea, and sleepwalking can all be linked to SRED. These sleep disorders run in families, so having a biological relative with a sleep disorder may raise your risk [1].

What Are the Possible Complications?

The complications go beyond weight gain. Without conscious control, there is a real risk of injury, such as cuts from preparing food or burns from stoves and ovens. Eating raw ingredients can cause food poisoning, and swallowing inedible household products can cause poisoning [1].

There are fire risks too: someone in a sleep-eating state may leave a gas stove on or put something flammable on a hot burner. Over time, SRED can cause weight gain, obesity, daytime fatigue, and depression linked to feeling unable to control the behavior [1].

How Is SRED Diagnosed?

Diagnosis starts with a full evaluation by a healthcare provider. Because people rarely remember the episodes, information from family members or roommates is very helpful. The provider will do a physical exam and review your history to look for medications or health conditions that could be causing the behavior [1].

You may be asked to keep a sleep diary for a few weeks, noting when you go to bed, when you wake, how you feel, and any signs of nighttime eating. A sleep study at a sleep center is sometimes requested to look for other sleep disorders and to better understand your sleep behavior [1][4]. See your provider right away if you suspect you have had episodes.

How Is SRED Treated?

Treatment depends on the cause [1]. If a medication is responsible, your provider may adjust the dose or switch you to another one, so do not change any medication unless your provider approves. Underlying sleep, medical, or mental health conditions are treated with medication or therapy. Treatment may include a selective serotonin reuptake inhibitor (SSRI), an antidepressant that raises serotonin levels and helps regulate mood. When SRED has no other cause or does not respond to other measures, limited data suggest benefit from topiramate, an anti-seizure medicine, and that decision belongs to a specialist [4].

Safety measures are a central part of management. They protect you and the people you live with from injury during an episode [1].

Safety Measure	How to Put It in Place
Kitchen security	Place locks on the refrigerator and cabinets.
Appliance safety	Use locks on the oven, or disconnect the gas or power.
Pathway safety	Clear furniture and other hazards from the path to the kitchen.
Monitoring	Install an alarm on the bedroom door.

How Can Better Sleep Habits Help?

Lifestyle changes can also help reduce SRED episodes. Managing stress with techniques such as yoga or meditation can calm the nervous system before bed. Avoid caffeine, screens, and too much alcohol in the hours before sleep [1].

A consistent sleep schedule helps your body keep a steady rhythm, which may reduce the disruptive shifts between sleep stages that can trigger episodes. Changing habits is hard, so try to master one change at a time before moving on to the next [1].

What Is the Outlook, and Can SRED Be Prevented?

With treatment, many people sleep eat less or stop over time, and you can expect to see a provider a few times a year so they can check how well treatment is working. Untreated SRED may lead to injuries, food poisoning, and illness, and episodes will likely continue or become more frequent [1].

Not every cause can be prevented, but you can lower your risk by avoiding sedatives as sleep aids. If you take antipsychotic medication, ask your provider whether it could cause SRED; they may offer alternatives if you are at risk [1].

Frequently Asked Questions

Is sleep-related eating disorder the same as night eating syndrome?

No. In night eating syndrome, the person is fully awake and aware of eating. In SRED, the person is asleep and usually has little or no memory of the episode. The two conditions can overlap.

Can children have SRED?

SRED most often begins in a person's 20s [1]. Related parasomnias such as sleepwalking are more common in children.

Will I always remember nothing about the eating episode?

Most people have little or no memory, but some have partial recall and remember small fragments of the event [1].

Are there specific foods people usually eat during SRED?

People often choose foods that are high in calories, fat, or sugar. They may also eat unusual food combinations or non-food items such as coffee grounds, raw meat, or cigarette butts [1].

Can stress trigger a sleep-eating episode?

Yes. Stress and underlying mental health conditions such as anxiety or depression can contribute to SRED symptoms [1].

Is SRED a sign of an eating disorder?

SRED is classified as a sleep disorder (a parasomnia), not a traditional eating disorder. However, an underlying eating disorder can be one of the factors that contribute to it [1].

How can a roommate help someone with SRED?

People who share your home can describe what they see, which helps with diagnosis because you probably will not remember the episodes. They can also help guide you safely back to bed [1].

Should I try to wake someone up during an episode?

It is hard to wake someone during an episode, and they may seem confused or in an altered state. If possible, gently and safely guide them back to bed [1].

Can quitting smoking cause SRED?

Quitting smoking can contribute. Changes to your routine, such as quitting smoking or starting a diet, may play a role in triggering symptoms [1].

What kind of doctor treats SRED?

SRED is usually evaluated by a sleep medicine specialist, and neurologists or psychiatrists with sleep expertise may also be involved. Start with your primary care provider if you suspect it.

Does SRED cause weight gain?

SRED can. The food eaten is often high in calories and comes on top of your daytime intake, so weight gain and obesity are possible complications [1].

Can medications for insomnia cause SRED?

Yes. Sedative-hypnotics, benzodiazepines, and benzodiazepine receptor agonists are known medication causes. Do not stop or change any medicine unless your healthcare provider approves [1].

Are there medications to stop SRED?

Treatment depends on the cause. Your provider may adjust a medication that is triggering episodes, treat an underlying condition, or prescribe a medicine such as an SSRI. Limited data suggest topiramate may help in some hard-to-treat cases [1][4].

Is SRED permanent?

With treatment, many people sleep eat less or stop the behavior over time. Without care, episodes will likely continue and may become more frequent [1].

Can a sleep study diagnose SRED?

A sleep study (polysomnography) can help by showing coexisting sleep disorders such as sleep apnea and sometimes capturing episodes, but it is not always needed. Diagnosis often relies on your history and on reports from people you live with [3][4].

References

1. Cleveland Clinic. Sleep-related eating disorders. Cleveland Clinic Health Library. Last updated November 13, 2024. https://my.clevelandclinic.org/health/diseases/21730-sleep-related-eating-disorders

2. Komada Y, Takaesu Y, Matsui K, et al. Comparison of clinical features between primary and drug-induced sleep-related eating disorder. Neuropsychiatr Dis Treat. 2016;12:1275-1280. PMID 27307740. https://doi.org/10.2147/NDT.S107462

3. Blaszczyk B, Wieczorek T, Michalek-Zrabkowska M, et al. Polysomnography findings in sleep-related eating disorder: a systematic review and case report. Front Psychiatry. 2023;14:1139670. PMID 37234216. https://doi.org/10.3389/fpsyt.2023.1139670

4. Lipford MC, Auger RR. Sleep-related eating disorder. Sleep Med Clin. 2024;19(1):55-61. PMID 38368069. https://doi.org/10.1016/j.jsmc.2023.10.013

Medical disclaimer

This guide is based on medical information last reviewed on November 13, 2024. Always consult a healthcare professional for diagnosis and treatment decisions.

Health information, not medical advice. This article is for general education and is not a substitute for professional diagnosis or treatment. Always consult a qualified healthcare provider about your own health, and seek emergency care for urgent symptoms.