Afternoon Melatonin to advance sleep at night

http://www.ncbi.nlm.nih.gov/pubmed/16263827

I took 3mg of melatonin at about 3:30pm yesterday, I felt drowsy afterwards for the rest of the day but avoided napping or lying down, at 9:45pm I got to sleep and slept soundly throughout the night until 7:20am when I had to wake for work.

People with insomnia may just have severely delayed circadian rythm's, and taking melatonin in the afternoon may be alot more beneficial than taking it at bedtime to shift the body clock forward.

Beware though taking melatonin in the afternoon will make you feel drowsy for the rest of the day.