Well to start off... look at the REM-PM line up. Even someone who doesn't know much about supplementation could tell this is stacked with many goodies. All ingredients are concentrated and purified.
Next, it's not just a sleep aid, but a thermo sleep aid. One thing that makes it so versatile that you can take it with or without food. Most sleep aids you cannot eat anything within anywhere from 30-45 minutes in order for it to be most effective.
Maintain higher GH levels, control cortisol levels, and have better REM sleep. Also one important factor in most sleep aids is how you feel when you wake. Many of the reviews state people waking up, taking a piss and getting back to the cash haha. But really feeling refreshed and not in a bad mood.
The last thing is you only have to take 1 capsule, which makes one bottle last 2 months