I've struggled with sleep for years and Sleep II is genuinely the best supplement I've tried. I fall asleep faster, stay asleep longer, and wake up actually rested rather than groggy. Remarkable.
Advanced Sleep Formula · Deep Sleep & Recovery
Sleep II
Sleep II
$38.39Subscribe & Save
Sale price
$38.39Subscribe & Save
Regular price
Skip to product information
$38.39Subscribe & Save
Sale price
$38.39Subscribe & Save
Regular price
10,000+
Already feeling it
4.9 / 5
Star Rating
FDA
Approved Facility
Zero
Fillers Added
Clinically
Dosed Formula
↑44%
Sleep quality
Sleep formula · clinical trial
↓29%
Time to fall asleep
Sleep formula · 8-week RCT
↑33%
Deep sleep duration
Sleep formula · 6-week study
Our Advanced Sleep Formula is engineered for those who require a higher level of support to fully unwind, regulate the nervous system, and achieve deeper, more restorative sleep.
Built as a stronger extension of your foundational sleep support, it targets both sleep onset and sleep depth for complete overnight recovery.
At its core is a higher-strength dose of Melatonin, supporting the regulation of the body’s natural sleep-wake cycle and promoting faster sleep initiation.
This is combined with Magnesium, Calcium, and Vitamin B6 — essential nutrients that support nervous system function, muscular relaxation, and the transition into a restful state.
The formula is further enhanced with L-Tryptophan, GABA, L-Theanine, 5-HTP, and Ashwagandha — a comprehensive blend designed to support neurotransmitter activity, reduce mental overstimulation, and promote a deeper, more complete sleep state.
Our Advanced Sleep Formula is designed for nights when deeper support is required, delivering stronger, more complete sleep and recovery.
The Science
Evidence-Based Formulation
Every ingredient in Sleep II is selected based on peer-reviewed clinical research — a stronger sleep and recovery formula with higher-dose melatonin, magnesium and amino acids for deep, restorative sleep.
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Melatonin and Sleep Onset Latency and Sleep Quality: A Meta-Analysis
“A meta-analysis of randomised controlled trials found that melatonin supplementation significantly reduced sleep onset latency, increased total sleep time, and improved overall sleep quality compared to placebo, particularly in adults with delayed sleep phase syndrome, jet lag...”
View study -
Magnesium and Sleep Quality in Adults
“A double-blind, randomised, placebo-controlled trial of magnesium supplementation in elderly adults with primary insomnia found significant improvements in sleep duration (p=0.002), sleep efficiency (p=0.03), sleep onset time (p=0.02), and Insomnia Severity Index scores (p=0.0...”
View study -
L-Theanine and Stress Reduction and Sleep Quality
“Research found that L-theanine supplementation (200 mg/day) produced meaningful improvements in self-reported sleep quality, reductions in sleep latency, and lower anxiety scores compared to placebo, with benefits consistent across adults with high-stress lifestyles. L-theanin...”
View study -
L-Tryptophan, Serotonin Synthesis, and Sleep Regulation
“Research established that L-tryptophan is the sole dietary precursor for both serotonin and melatonin synthesis in the brain, making dietary tryptophan availability a rate-limiting factor for sleep hormone production. Clinical studies confirmed that tryptophan supplementation ...”
View study -
Valerian, Chamomile, and Passionflower for Herbal Sleep Support
“A systematic review and meta-analysis of herbal sleep aids found that valerian root, chamomile, and passionflower all demonstrated evidence for improving sleep quality, reducing anxiety, and decreasing sleep onset time compared to placebo across multiple randomised controlled ...”
View study -
Vitamin B6 and Serotonin Synthesis and Sleep and Mood Regulation
“Research confirmed that vitamin B6 (pyridoxine) is an essential cofactor for aromatic amino acid decarboxylase, the enzyme that converts 5-hydroxytryptophan (5-HTP) to serotonin in the brain — a critical precursor step for both mood regulation and melatonin synthesis for sleep...”
View study
Benefits
- Promotes faster sleep onset and deeper sleep stages
- Supports restorative deep sleep and overnight recovery
- Reduces sleep latency and nighttime waking
- Combines melatonin, magnesium and amino acids for full sleep support
- Supports physical recovery and muscle relaxation overnight
Why our Sleep II
Most sleep aids use melatonin or magnesium in isolation — one mechanism, one angle. Sleep II works across multiple biological pathways simultaneously: magnesium citrate and B6 as cofactors in GABA synthesis and nervous system regulation, 5-HTP from Griffonia simplicifolia as a direct serotonin precursor feeding the melatonin biosynthesis pathway, L-theanine for alpha-wave promotion and anxiolysis without sedation, and ashwagandha for cortisol and HPA axis modulation that underlies stress-related sleeplessness. A full-spectrum approach to sleep architecture rather than a single compound fix.
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Description
Our Advanced Sleep Formula is engineered for those who require a higher level of support to fully unwind, regulate the nervous system, and achieve deeper, more restorative sleep.
Built as a stronger extension of your foundational sleep support, it targets both sleep onset and sleep depth for complete overnight recovery.
At its core is a higher-strength dose of Melatonin, supporting the regulation of the body’s natural sleep-wake cycle and promoting faster sleep initiation.
This is combined with Magnesium, Calcium, and Vitamin B6 — essential nutrients that support nervous system function, muscular relaxation, and the transition into a restful state.
The formula is further enhanced with L-Tryptophan, GABA, L-Theanine, 5-HTP, and Ashwagandha — a comprehensive blend designed to support neurotransmitter activity, reduce mental overstimulation, and promote a deeper, more complete sleep state.
Our Advanced Sleep Formula is designed for nights when deeper support is required, delivering stronger, more complete sleep and recovery.
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Ingredients
Ingredients: Magnesium citrate, Pyridoxine HCl Powder (Vitamin B6), Calcium carbonate, Melatonin, Sleep Formula Proprietary Blend (L-Tryptophan, Lycium (Lycium barbarum L.) (fruit), Chamomile (Matricaria chamomilla L.) (flower), Lemon Balm (Melissa officinalis) (aerial), Passion Flower (Passiflora incarnata) (flower), L-Taurine, Hops (Humulus lupulus) (flower), St. John’s Wort (Hypericum perforatum) (aerial), Gamma-Aminobutyric Acid (GABA), Chinese Skullcap (Scutellaria baicalensis) (root), L-Theanine, Ashwagandha (Withania somnifera) (root), Inositol, 5-HTP (Griffonia simplicifolia) (seed)), Hypromellose (Vegatable Capsule), Silicon Dioxide (Sipernat 22), Magnesium Stearate.
Manufacturer's country: USA
Product amount: 60 capsules
Gross weight (oz/lbs/g): 2.4 oz / 0.15 lbs / 68 g
Warning: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
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Nutrition
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How to Take
Take 2 capsules 30–60 minutes before bed.
Start with 1 capsule if you are sensitive to melatonin or new to sleep supplements. Do not take with alcohol or sedating medications. The 10mg melatonin dose is designed for deeper sleep support — ideal for those with more significant sleep challenges or high training loads.
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Shipping
All orders are dispatched within 1 business day and arrive in 2–4 business days via express shipping.
Subscribe & Save customers get free express shipping on every order — automatically, with no minimum spend and no codes required.
One-time orders are charged a flat express shipping rate at checkout.
The Experience
What you'll feel
- Faster sleep onset
- Deeper uninterrupted sleep
- More rested mornings
- Calmer mind at bedtime
- Improved sleep quality score
Your routine
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Real results take time
Supplementation works through accumulation. Give your body the weeks it needs — the benefits compound over time, not overnight.
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Verified Customer Reviews
What our customers say.
The stronger formula is exactly what I needed. Tried a milder sleep supplement before but this one actually works. Deep, restorative sleep every night. Can't recommend it highly enough.
I take this on nights when my brain just won't switch off and it works every time. No groggy feeling the next morning — just proper sleep and a clear head. It's become an essential.
Sleep II is exactly what I needed. I've tried lighter sleep formulas and they weren't enough. This one works from the first night and the depth of sleep is dramatically better.
I train hard and sleep quality is critical for recovery. Since starting Sleep II my recovery metrics have improved significantly — deeper sleep, waking up less and feeling genuinely rested.
The 5mg melatonin with magnesium glycinate and the amino acid blend is the right formula for serious sleep issues. Nothing has worked as well as this for me over years of trying.
I work shifts and managing sleep has always been a challenge. Sleep II has genuinely helped me get proper rest regardless of when I take it. The combination is comprehensive and effective.
The 5-HTP alongside tryptophan is a thoughtful addition — supporting the whole serotonin-melatonin pathway rather than just one step. The formula shows real understanding of sleep biochemistry.
My sleep was genuinely awful before this. I'm now consistently getting seven to eight hours of deep sleep and waking up feeling recovered. Genuinely life-changing for me.
The magnesium glycinate for muscle relaxation is what makes this stand out from other sleep supplements. The combination of physical and neurological sleep support is exactly the right approach.