[balfirevic]

> I drink a cup of chamomile tea and take 5 mg of melatonin before I go to bed, and this seems to help (or might be a placebo)

That is way too much and possibly not timed properly. Correct dosage is closer to 0.3 mg - 1 mg. See here for more details about dosage and timing: https://slatestarcodex.com/2018/07/10/melatonin-much-more-th...

Edit: I incorrectly written grams instead of milligrams previously, thanks aneidon for catching it.

[aneidon]

I think you mean 0.3 mg, based on your source.

[balfirevic]

Oh, wow, thanks for catching that. Yes, 0.3 g - 1 g is absurd.