how long should it take for melatonin to kick in?

[Guest guest]

We started our son on melatonin last night since the full time enzymes

are making him a bit wiley and he won't lie down and rest...

But two nights in a row,,, it has been about 2 1/2 hours after the

melatonin before he finaly konks out. I thought it would be faster.

It is the sublingual kind. 1 mg.

Last night after he finally konked out, I could tell he did have a

deeper sleep than usual.... he even snored. ahhaaaaaaaaaahahahah

He has been able to sleep through the night since we started him on the

diet a year and a half ago, so I never tried it before.

Any thoughts???