I recently adopted a 3-year-old girl. The first weeks in her new home, bedtimes were understandably difficult. She had a lot of trouble falling asleep, and resisted going to bed.

My wife and I realized that a lot of this probably had to do with anxiety surrounding the sudden life change (she was given little warning or preparation about her move). We tried all kinds of bedtime routines to help her calm down and be able to sleep. Eventually we worked out a system that worked relatively well, and resulted in a minimum of tantrums and resistance.

However, she still couldn't fall asleep. She would lie awake literally for hours. She was calm and mostly non-interactive, but would just lie there staring at the ceiling, or talking softly to her stuffed animals, or playing with her fingers; finding ways to while away the time because she couldn't sleep. When she finally did fall asleep, she would often wake again during the night, and then would have the same trouble falling asleep again, resulting in a severe lack of sleep.

In consultation with her doctor, we began giving her melatonin about 1/2 hour before we put her into bed. We started with 1mg, and then, when that didn't seem to be enough, we upped the dose to 2mg (again, as per her doctor). We have found that it works amazingly well, and gives her the ability to fall asleep quickly and to sleep through the night and feel well-rested in the morning.

We've been doing this for about 2 months now.

There have been a couple of nights where we forgot to give her the melatonin, or just decided to see how she does without it, and it's immediately right back to the hours of non-sleep, so there's little chance that she can sleep well without it, at least in the near future.

In researching melatonin online, it seems that there isn't a lot known about its long-term effects, and some websites warn that using it for children can cause problems for them later in life.

I want my daughter to be able to sleep well, but I also don't want to do anything that may harm her, now or in the future, so I'm a little concerned about continuing to use the melatonin, since it appears she may need it for a while.

Do I need to be concerned about continuing to give her the 2mg of melatonin every night?

Are there long-term effects I should be concerned about?

If it's not recommended, are there alternatives to melatonin that might have a similar effect of helping her to get to sleep and to stay asleep?

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    The problem with medication and even some herbal teas is that they are first tested in adults, and data for children are often lacking or insufficient, so a precautionary principle ("better safe than sorry") is applied. I wanted to suggest that you look into Melissa tea, but I ran into that obstacle - from European Medicines Agency website: "The use in children under 12 years of age has not been established due to lack of adequate data." A direct consultation with a physician (and looking for a 2nd opinion in person if you are not satisfied or have concerns) is your best option (IMO).
    – Lucky
    Commented Jul 24, 2015 at 23:49
  • Hi, GentlePurpleRain, and welcome to the site! If this doesn't get an answer before then, I will try to answer it within 24-48 hours. It's an interesting question, and one I'd like to know the answer to as well. Commented Jul 25, 2015 at 3:20
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    I don't have any knowledge to comment on safety. As far as effectiveness, my experience is that quite a few people find a half a milligram (or even a quarter of a milligram) to be more effective than 2mg. Commented Jul 25, 2015 at 10:58
  • Melatonin is naturally produced in the body during sleep and is mistaken and marketed as a sleep pill. it has nothing to do with triggering sleep itself! it is merely produced while sleeping. please spare your child with experimenting on him/her.
    – vsync
    Commented Jul 29, 2015 at 12:11
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    @vsync You need to do a little more research. Melatonin is produced by the body before sleep begins, as well as during sleep, and is a big part of what makes us feel "sleepy". I have observed first-hand the efficacy of using it as a sleep aid, as I detailed in my question. It likely doesn't work for everyone, or in all circumstances, but it has definitely proven effective for my situation. Commented Jul 29, 2015 at 14:31

1 Answer 1


Since melatonin is secerned by many glands (pituitary, thyroid, pineal, adrenals, and gonads), it might be a malfunction of one of these. I am not yet a physician, but I suggest you to try to properly address underlying causes. Maybe melatonin supplements are just a palliative which helps controlling symptoms of something else, like an adenosine lack.

That said, let's get to the science:

This study states that, in relation to development delay risks,

[...]Melatonin treatment in children can be sustained over a long period of time without substantial deviation of the development of children with respect to sleep quality, puberty development and mental health scores[...]

So it apparently is safe to use it on a regular basis. Just remember it's not helpful when there are wake-up-in-the-middle-of-the-night problems, which are often not idiopathic, they mean something, be it a psychological, health, or anything-else related issue.

Have a nice day


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