Sleep Supplements
Our premium sleep supplements are formulated to support relaxation, improve sleep quality, and promote deep, restorative rest. Explore our range of high-quality sleep supplements in Australia and experience the benefits of truly restful nights.
AUSTRALIA’S BEST SLEEP SUPPLEMENTS
Sleep Supplements for Deep Rest & Nighttime Recovery
Sleep is more than just rest—it’s essential for cellular repair, hormone regulation, and overall well-being.
Every night, your body works to repair damage from daily stress, toxins, and natural aging, but poor sleep can disrupt this vital process.
Our premium sleep supplements are formulated to support deep, restorative sleep, promote relaxation, and enhance overnight recovery.
By choosing the best sleep supplements in Australia, you’re giving your body the support it needs to wake up refreshed, rejuvenated, and ready for the day ahead.
Sleep: The Foundation of Restoration & Well-Being
At the core of your health, quality sleep is essential for energy, recovery, and overall wellness.
Your body undergoes critical processes during sleep, including hormone regulation, cellular repair, and immune support.
However, factors like stress, aging, and lifestyle habits can disrupt your natural sleep cycles, leading to fatigue and poor recovery.
Our premium sleep supplements are designed to promote deep relaxation, improve sleep quality, and enhance overnight restoration, helping you wake up feeling refreshed and revitalized.

Highest-Quality Sleep Supplements
When it comes to sleep supplements, quality and purity are essential. Products with fillers or artificial additives can interfere with your body’s natural sleep cycles and overall well-being.
That’s why we prioritize transparency and excellence. Every batch of our sleep supplements undergoes rigorous third-party testing to ensure 100% purity and optimal effectiveness.
We proudly share our lab results so you know exactly what you’re getting—clean, high-quality ingredients with no hidden additives.
Trust starts with proof, and our certifications guarantee the highest standards for your rest, recovery, and overall wellness.
Why Our Sleep Supplements?
At Eternum Labs, we take pride in our commitment to quality. We offer the highest-quality sleep supplements in Australia.
All our products are third-party tested for purity, manufactured in GMP-certified facilities, and carefully formulated for maximum absorption and effectiveness.
Whether you’re looking to fall asleep faster, improve sleep quality, or wake up feeling refreshed, our supplements are designed to deliver real, restful results—helping you achieve deep, restorative sleep naturally.
The Science Behind Deep Sleep & REM Sleep
Deep sleep is the most restorative phase of sleep. Without sufficient deep sleep, individuals may experience fatigue, weakened immunity, and difficulty concentrating. During deep sleep, the body:
- Repairs muscles and tissues
- Strengthens the immune system
- Releases growth hormones for recovery and cell regeneration
- Flushes out brain toxins linked to neurodegenerative diseases
REM (Rapid Eye Movement) sleep is the phase where the brain is highly active, but the body remains immobile. A lack of REM sleep can lead to memory issues, mood disturbances, and reduced cognitive performance. REM sleep plays a key role in:
- Cognitive function, enhancing problem-solving skills, learning, and creativity
- Strengthening and organising memories & information gathered during the day
- Emotional processing, regulating mood and reducing stress

Natural Ingredients That Support Sleep (Backed by Science)
Magnesium:
Magnesium is essential for relaxing the nervous system and regulating neurotransmitters like GABA, which help promote sleep. Research shows that magnesium supplementation may help improve sleep efficiency, time to sleep onset, and sleep duration..
Reishi Mushroom Extract:
Used in traditional Chinese medicine for centuries, Reishi mushroom helps reduce stress and improve sleep quality. Studies suggest that Reishi promotes longer sleep duration and better sleep latency in individuals struggling with restlessness.
Valerian Root Extract & Passionflower:
Valerian root is one of the most studied natural sleep aids, shown to help with falling asleep faster and reducing night-time wakefulness. Passionflower enhances GABA production, leading to calmness and reduced stress, making it effective for people with anxiety-related sleep disturbances.
Lemon Balm & Chamomile:
Both herbs have been used for centuries to ease nervous tension and promote relaxation. Studies suggest that Lemon Balm can improve sleep quality and reduce symptoms of insomnia, while Chamomile is known for its mild sedative effects.
L-Theanine:
Found naturally in green tea, L-Theanine promotes alpha brain wave activity, leading to a calm and relaxed mental state without drowsiness. Clinical research suggests that L-Theanine helps reduce stress and supports better sleep by increasing GABA and serotonin levels.
Chlorogenic Acid & Apigenin:
Chlorogenic Acid, an antioxidant found in coffee beans, helps modulate sleep-wake cycles and reduce oxidative stress on brain cells. Apigenin, a flavonoid in chamomile, has been shown to have mild sedative properties, helping regulate circadian rhythms and reduce nighttime anxiety.
Sleep Supplement FAQ's
The best sleep supplements contain science-backed ingredients that support relaxation, sleep onset, and deep sleep cycles.
Key ingredients include magnesium, which helps regulate neurotransmitters and melatonin production; valerian root and passionflower, which promote calmness and improve sleep quality; and L-Theanine, which enhances alpha brain waves for a more relaxed state.
Additional botanicals like chamomile, lemon balm, and reishi mushroom have also been shown to aid sleep by reducing anxiety and improving sleep duration.
Sleep supplements work by targeting neurotransmitter activity and reducing stress hormones. Ingredients like L-Theanine and Magnesium support GABA production, a neurotransmitter responsible for calming the nervous system.
Valerian root and passionflower help slow brain activity and ease anxiety, promoting better sleep onset. Adaptogens like reishi mushroom can also lower cortisol levels, helping the body transition into restful sleep.
These supplements work naturally with the body’s sleep-wake cycle, rather than forcing sedation like synthetic sleep aids.
Most natural sleep supplements are safe for long-term use when taken as directed. Unlike prescription sleep aids, they do not cause dependency or withdrawal effects.
However, it’s important to choose supplements that are third-party tested for purity and avoid excessive dosages. Certain individuals, such as those on medications or with existing health conditions, should consult a healthcare professional before daily use.
Yes, many natural sleep aids also function as stress relievers. L-Theanine, found in green tea, is known for promoting relaxation without sedation.
Passionflower and lemon balm have been used traditionally to reduce anxiety and nervous tension, while reishi mushroom is an adaptogen that helps regulate the body’s stress response.
By lowering stress hormones like cortisol, these ingredients can help improve overall sleep quality.
Many sleep supplements support the body’s natural melatonin production rather than providing direct melatonin.
Ingredients like magnesium and apigenin help stimulate melatonin synthesis, while herbal extracts like chamomile and valerian root promote relaxation.
This makes them a great alternative for individuals who prefer not to take synthetic melatonin or experience side effects from melatonin supplements, such as grogginess or vivid dreams.
The time it takes for sleep supplements to work depends on the ingredients. Fast-acting compounds like L-Theanine and Magnesium can take effect within 30-60 minutes before bed.
Herbs like valerian root and reishi mushroom may require consistent use for a few days to a week to notice significant improvements in sleep patterns.
Adaptogens often build up in the system over time, gradually improving stress resilience and sleep quality.
Unlike synthetic sleep medications, natural sleep supplements do not typically cause next-day grogginess. They work by enhancing sleep quality rather than forcing sedation.
However, excessive doses of valerian root or passionflower may cause slight drowsiness in sensitive individuals. It’s always best to follow the recommended dosage and monitor how your body responds.
For individuals struggling with occasional insomnia, sleep supplements can help by calming the nervous system and supporting the body’s circadian rhythm.
Ingredients like magnesium, valerian root, and chamomile can aid sleep onset, while adaptogens like reishi may help address stress-related insomnia.
However, chronic insomnia may require lifestyle changes and addressing underlying health factors beyond supplementation alone.
Natural sleep supplements work with the body’s biology to support relaxation and improve sleep cycles without causing dependence.
They promote neurotransmitter balance, lower stress hormones, and encourage deep sleep naturally.
In contrast, synthetic sleeping pills often act as sedatives, artificially forcing sleep but potentially causing side effects like drowsiness, addiction, or disrupted sleep architecture.
Yes, certain sleep supplements specifically enhance deep sleep stages (slow-wave sleep).
Magnesium and L-Theanine help relax the nervous system, allowing for more restorative sleep.
Reishi mushroom and valerian root may improve deep sleep duration by reducing stress and balancing neurotransmitters.
By optimizing natural sleep cycles, these supplements help the body recover more effectively overnight.
Most natural sleep aids have minimal side effects when taken correctly.
Some individuals may experience mild digestive discomfort, drowsiness (if overused), or mild headaches.
It’s recommended to start with the lowest effective dose and adjust as needed.
If any unusual side effects occur, discontinuing use and consulting a healthcare professional is advised.
Customer Reviews
from 389 reviews
No joke, this is the best thing I've tried for energy and focus. It's like night and day compared to how I felt before. Highly recommend!
One of my best friends is huge on biohacking and has recommended this to me for ages now. he actually got me a bottle for my birthday and I feel silly for not getting onto it sooner! One thing I noticed is that my irregular cycles are somehow regulated. I use the FLO app and it's been on time to the tee every single month. Unheard of for me!
Fast shipping, great price, great value and definintly pure ingredients. It's very obvious as you start to feel a boost from Day 1. I've tried other companies (mainly on Amazon) and this particular product feels the most potent. Will definitly be ordering again.
You gotta be careful with these lol I popped 6 in one day because they are so yum, I need to chill
My husband and I take 2 doses (1,000mg each) every morning. We now can't live without it. For anyone who feels even just a little off or disregulated, this seems to have so many positive benefits. More energy is the most noticeable, but I've personally noticed a huge shift in my mood and overal mental state. My husband notices deeper sleep and feeling refreshed in the mornings, which was previously unlike him as he was a morning grouch before using this. Please never discontinue!!!
I've been using this supplement for a few weeks now, and I can definitely feel a boost in my energy levels. It's been a great addition to my daily routine. 😊
It's alright but not as effective as other NMN products I've tried. Works okay, but I was hoping for more noticeable results.
there was a bit of a shipping mishap but customer service was great and fixed it up quick. Great NMN so far otherwise
Really like the dosage and the ease of taking it. The 500mg per capsule is perfect for my needs.
Been taking it for a month now. Definitely noticing more stamina during my workouts. Glad I made the switch.