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The Daily Insight

When should I take melatonin for shift work?

Author

Sarah Cherry

Updated on March 15, 2026

Melatonin is a natural hormone produced by the brain's pineal gland and a signal for when your body is supposed to sleep. Research suggests that a small dose is just as effective as higher doses. Melatonin should be taken several hours before you plan to sleep.

Accordingly, should Night shift workers take melatonin?

The American Academy of Sleep Medicine8 notes that melatonin supplements can help night shift workers sleep during the day, although this does not necessarily lead to better alertness during the work shift. Melatonin supplements have a relatively low risk of side effects.

Similarly, can you take melatonin during the day if you work night shift? Don't take melatonin. Stevens says it's not a great idea unless specifically recommended by a physician. While you'd think it would be helpful, it can actually throw a wrench into the smooth functioning of the circadian system and worsen the disruption to your biological clock.

Also to know is, can you use melatonin while shifting?

Melatonin may be an effective treatment for shift workers with difficulty falling asleep.

How long does it take for melatonin to kick in?

It's recommended take melatonin 30 to 60 minutes before bedtime. That's because melatonin typically starts working after 30 minutes, when levels in your blood rise.

Related Question Answers

Do night shifts shorten your life?

Women on rotating night shifts for 15 years or more were 23% more likely to die from CVD, and 25% more likely to die from lung cancer. Plus, the night shift lifestyle is linked with behaviors that increase cancer risk, such as getting insufficient sleep, smoking, eating junk food and getting less sleep.

Why can't I sleep after night shift?

Night workers can feel cold, shaky, nauseous, sleepy and drowsy at this time. This is a normal reaction as the body is programmed to be less active at this time. It can be difficult to stay awake especially if work demands are low. Eat and drink something warm (avoid caffeine) during this period and try to keep busy.

How long should you sleep before a night shift?

Remember to have at least a two-hour sleep before going back on duty, and make sure you are fed and watered properly. The most important thing is to try and keep your sleep debt to a minimum, so the more daytime sleep that you get, the better you are going to feel.

How can I sleep better after a night shift?

  1. Avoid caffeine.
  2. Eliminate light from your bedroom.
  3. Get lots of light during your working hours.
  4. Minimise light exposure before bed.
  5. Leave your work at work.
  6. Exercise daily, but not before bed.
  7. Don't smoke for a few hours before bed.
  8. Have a pre-sleep routine.

What vitamins should Night shift workers take?

Nutritional supplements

Based on numerous studies, night shift workers should consider taking 2000-5000 IU/d vitamin D3 and raising serum 25-hydroxyvitamin D levels to 40-60 ng/ml. This may help to compensate for the effects on bone density of reduced sun exposure.

Does light therapy work for night shift workers?

Light therapy has been shown to impart positive effects in night shift workers.

How can I stay healthy working night shift?

How to Be Healthy (and Happy) While Working Night Shift
  1. Find a sleep schedule that works for you.
  2. Drink caffeinated beverages (in moderation).
  3. Fuel your body with healthy foods.
  4. Practice good sleep hygiene.
  5. Stay hydrated.
  6. Seek professional help if needed.

How much melatonin should I take for shift work?

Melatonin. Melatonin supplements may help you adapt better to a shift work schedule. Melatonin is a natural hormone produced by the brain's pineal gland and considered a signal for when you body is supposed to sleep. Research suggests that a dose of 0.5 mg is just as effective as higher doses.

Do narcoleptics get deep sleep?

Narcoleptics may not be able to experience the amount of restorative deep sleep that healthy people experience due to abnormal REM regulation – they are not "over-sleeping". Narcoleptics typically have higher REM sleep density than non-narcoleptics, but also experience more REM sleep without atonia.

How does Melatonin work at night?

Melatonin is a hormone your brain makes naturally to control your sleep cycle. The process is tied to the amount of light around you. Your melatonin level usually starts to rise after the sun sets and stays high during the night. It drops in the early morning, which helps you wake up.

How much melatonin is too much?

Doses between 1 and 5 milligrams (mg) may cause seizures or other complications for young children. In adults, the standard dose used in studies ranges between 1 and 10 mg, although there isn't currently a definitive “best” dosage. It's believed doses in the 30-mg range may be harmful.

How do you survive night shift without sleep?

Tips for staying awake and alert during your shift
  1. Nap. Take a 30 minute nap before your shift begins and, if possible, try to get in a few 10-20 minute naps throughout the night.
  2. Eat small portions throughout the shift.
  3. Keep moving.
  4. Chat with your co-workers.
  5. Be careful with your caffeine intake.

What are the symptoms of shift work disorder?

Shift Work Disorder vs. Insomnia
  • Fatigue or malaise.
  • Difficulty paying attention or concentrating.
  • Memory impairment.
  • Mood disturbance or irritability.
  • Excessive daytime sleepiness.
  • Hyperactivity, impulsivity, aggression, and other behavioral problems.
  • Reduced motivation, energy, or initiative.

Is it bad to take melatonin every night?

If melatonin does seem to help, it's safe for most people to take nightly for one to two months. “After that, stop and see how your sleep is,” he suggests. “Be sure you're also relaxing before bed, keeping the lights low and sleeping in a cool, dark, comfortable bedroom for optimal results.”

Does Melatonin make it hard to wake up?

One of the most common side effects of melatonin is drowsiness. Some people may notice that they feel sleepy or groggy the morning after taking melatonin. Taking melatonin earlier in the evening or reducing the dose may help a person wake up feeling refreshed.

Does melatonin cause weight gain?

The results of many experimental studies and clinical trials suggest that in the case of obesity, the circadian and seasonal rhythm of melatonin secretion is disturbed [18, 19]. Lower levels of melatonin secretion in the autumn-winter period can increase appetite and lead to weight gain [20].

Is melatonin good for anxiety?

Melatonin, a hormone produced by your body, has been shown to improve symptoms of anxiety. Supplementing with melatonin for anxiety can improve sleep quality, regulate circadian rhythm, and ease negative feelings associated with anxiousness.

How long will 10 mg of melatonin make you sleep?

The effects of melatonin last according to the dosage. A dosage of 0.5 mg will last only an hour while a 10 mg dosage will last more than seven hours. It all depends on how severe your condition. If you have infrequent episodes of sleeplessness, then a dosage of one or two milligrams should help you fall asleep.

Why is melatonin banned in the UK?

- In the UK, the Medicines Control Agency has banned the high-street sale of melatonin after it was decided the compound was "medicinal by function," and as such requires a drug license. The MCA has written to all relevant suppliers, which comprise mainly health food shops, ordering them to stop selling the product.

Do melatonin gummies actually work?

Given the role of melatonin in the body, it's no surprise that melatonin supplements have become a popular and widely available sleep aid. But there's not a lot of scientific evidence for their effectiveness.

Does melatonin work immediately?

Melatonin begins to have an effect within 30 minutes. You should start to feel peaceful & sleepy. Melatonin is a supplement that works with your natural sleep cycle. This is why it's important to have a relaxing environment to give yourself the best chance possible for a full night's sleep.

Why does melatonin not work for me?

This might be due to a few factors including that melatonin levels decline with age, which may exacerbate conditions related to circadian rhythm, such as sleep disorders. However, if you have a sleep problem that is caused by anxiety or another hormonal issue, then melatonin may not work to ease your sleep issues.