Sublingual works great! The dose that works depends on each person. You can get the sublingual Melatonin at GNC (cheap), and the results are immediate.Takes about an hour to kick in...... You can get a 'hangover' if you take too much, so wait until you have the next day off before taking for the first time. This way you can adjust your intake for best results. You'll sleep like a baby..... The other type of Melatonin you ingest doesn't seem to work for me.