Reishi Mushroom Beat Melatonin in a New Insomnia Study — Here’s Why Researchers Are Paying Attention
If you’ve ever struggled with insonnia, you’ve probably come across melatonin. It’s one of the world’s most popular sleep supplements, found everywhere from supermarkets to pharmacies, and it’s often the first thing people reach for when sleep starts slipping away.
But a new clinical study suggests there may be another natural option worth considering.
Researchers recently compared fungo reishi extract directly against melatonin in adults with chronic insomnia. Both supplements improved sleep… but reishi came out ahead.
For a mushroom that’s been used in traditional medicine for thousands of years, it’s an encouraging result, and another example of ancient remedies beginning to catch up with modern clinical research.
The Mushroom of Immortality
Long before sleep trackers and blue-light glasses existed, reishi (Ganoderma lucidum) had already earned legendary status across East Asia.
Known in China as Lingzhi, reishi has been used for at least 2,000 years and appears in some of the earliest texts of Traditional Chinese Medicine. Ancient physicians valued it as a tonic for longevity, resilience, vitality and emotional balance, while Taoist traditions regarded it as a symbol of spiritual wellbeing and harmony.
Its nickname —“the mushroom of immortality”— was never meant literally. Instead, it reflected the belief that supporting the body’s ability to recover from stress and illness could help promote a long, healthy life.
Historically, reishi was also associated with calmness and restorative sleep. While herbal traditions aren’t the same as clinical evidence, modern researchers are now beginning to investigate whether some of those long-held observations stand up under scientific testing.
Putting Reishi Head-to-Head with Melatonin
The new study set out to answer a straightforward question.
Could reishi work as well (or even better) than melatonin for people with ongoing insomnia?
Researchers recruited 218 adults living with chronic insomnia, rather than people who were simply having the occasional restless night.
Participants were randomly divided into two groups.
- One group took 5 mg of melatonin every evening.
- The other took reishi mushroom extract every evening.
The trial lasted eight weeks, with researchers assessing sleep quality using a validated insomnia questionnaire commonly used in clinical practice.
What the Study Found
The good news is that both groups experienced better sleep by the end of the trial.
However, the people taking reishi improved significantly more than those taking melatonin. Their insomnia scores fell further, and the difference between the two groups was large enough that researchers concluded it was unlikely to be due to chance alone.
The safety profile was also reassuring. Around 96% of participants completed the full study, and neither group experienced any serious adverse reactions over the eight-week period.
While longer studies are still needed, the findings suggest reishi is both well tolerated and potentially effective for chronic sleep difficulties.
Why Might Reishi Work Better?
The answer comes down to understanding perché someone can’t sleep in the first place. Melatonin and reishi appear to tackle different parts of the problem.
Melatonin is essentially your body’s internal timekeeper. As darkness falls, your brain naturally releases melatonin to signal that it’s time to wind down. That’s why melatonin supplements can be particularly helpful for issues like jet lag, shift work or disrupted sleep schedules.
Chronic insomnia is often different. For many people, the issue isn’t that the brain doesn’t know what time it is. It’s that the nervous system never fully shifts out of “high alert.”
Instead of switching into rest mode, the brain stays busy: thoughts race, stress lingers and sleep becomes difficult to reach. Researchers believe reishi may help through a different pathway involving GABA, one of the brain’s primary calming neurotransmitters.
You can simplify it like this: Melatonin acts like resetting your watch, while reishi may be helping the entire nervous system settle down.
Sleep Is One of the Brain’s Most Important Jobs
Better sleep isn’t simply about waking up feeling refreshed. During deep sleep, memories are consolidated, unnecessary neural connections are trimmed away, and important ones are strengthened. The brain’s glymphatic system also becomes more active, helping clear away metabolic waste products that build up during the day. It’s an extraordinary amount of maintenance.
Sleep also plays a major role in emotional regulation, immune function and learning. When sleep becomes chronically disrupted, all of these systems begin to suffer.
That’s why researchers have become increasingly interested in interventions that don’t simply knock people unconscious, but instead support the nervous system’s natural ability to rest.
Reishi’s Growing Scientific Reputation
Although reishi has centuries of traditional use behind it, modern research is only beginning to catch up.
Previous studies have suggested reishi may help reduce fatigue, support immune function and influence the body’s stress response, although many of these findings still require larger clinical trials before firm conclusions can be drawn.
Researchers have also identified compounds called triterpenes e polisaccaridi within reishi that appear to contribute to many of its biological effects. Laboratory and animal studies suggest these compounds may have antioxidant, anti-inflammatory and immune-modulating properties.
While much of this work remains preliminary, the overall picture is becoming increasingly interesting. Rather than acting as a simple sedative, reishi appears to interact with several systems involved in stress resilience and recovery.
That broader approach could explain why it may be particularly useful for people whose sleep problems are closely linked with chronic stress or nervous system overactivation.
Functional Mushrooms Are Entering the Mainstream
This study also reflects a much bigger shift happening in nutritional science. Functional mushrooms (including reishi, lion’s mane, cordyceps e turkey tail) are increasingly being investigated using the same rigorous methods applied to pharmaceutical medicines.
For decades, many of these mushrooms were discussed almost exclusively within traditional herbal medicine. Today they’re appearing in randomised clinical trials, laboratory research and systematic reviews.
Some findings will undoubtedly prove more promising than others. But as higher-quality evidence accumulates, researchers are beginning to separate folklore from measurable biological effects.
The Bottom Line
Reishi has carried a reputation as a calming, restorative mushroom for centuries. Now that reputation is beginning to receive support from controlled clinical research. For anyone living with chronic insomnia, it offers another reminder that nature still has plenty to teach modern medicine.
And if future studies continue in the same direction, the ancient “mushroom of immortality” may become just as well known for helping people enjoy something far more immediate than immortality… a genuinely good night’s sleep.
