Many people go through stretches when getting enough rest is difficult. Stress, anxiety and even a person's natural sleep pattern can make it harder to reach the recommended seven to nine hours of sleep.
The comparison between melatonin and magnesium comes up because both are commonly used for sleep-related problems, but they are not usually taken for exactly the same reason. Melatonin is often linked to trouble falling asleep and disruptions tied to body clock changes, including jet lag.
Magnesium, by contrast, is often discussed in relation to relaxation, including muscle tension and overall calm at night. That means the better option may depend less on which supplement is stronger and more on what kind of sleep issue a person is trying to address.
In practical terms, the choice between melatonin and magnesium is usually framed around the underlying cause of poor sleep. Someone dealing with travel-related schedule shifts may look at melatonin, while someone focused on tension or winding down may consider magnesium. The broader takeaway is that sleep problems can have different triggers, so the most useful supplement may vary from person to person.