But the U.S. government does not regulate melatonin products as drugs. It treats them as dietary supplements and as such, they are almost totally unregulated. Even if melatonin were safe and effective for treating sleep problems, you would have no way of knowing whether the melatonin you bought was produced under stringent quality standards. I suggest that she talk with her doctor or gynecologist. It is not clear just how disrupted her sleep is.
Most people wake periodically during the night and go right back to sleep.
If your wife is waking and having difficulty falling back to sleep, this could be a form of insomnia. Sleep disruptions can also be a symptom of peri-menopause. Your wife is certainly in the right age bracket for this. On the other hand, maybe your snoring is getting louder and you are the one who needs to see a doctor. It is not a bad idea to rule out sleep apnea, a potentially dangerous breathing problem that sometimes accompanies snoring.