Deep sleep, REM, and morning clarity.
Sleep isn't rest. Sleep is when your body does its most important work. Deep sleep is when growth hormone peaks, tissue repair accelerates, and the glymphatic system clears metabolic waste from the brain. REM sleep is when memories consolidate and emotional processing happens. Miss either of these stages consistently, and the downstream effects touch every system in your body.
This stack is designed for someone actively seeking to optimise their precision sleep. If this resonates with where you are right now, this is your starting point.
| Ingredient / Detail | Dose / Value | Timing | Why It Matters |
|---|---|---|---|
Magnesium L-Threonate 2g (AOR or DFH NeuMag) Brain-bioavailable magnesium Timing: 1-2h before bed Deep and REM sleep, HRV, cognitive readiness | 2g (approx 145mg elemental Mg) | 1-2h before bed | Deep and REM sleep, HRV, cognitive readiness |
Glycine 3g (Precision Glycine™) Amino acid Timing: 30-60 min before bed Core temperature reduction via vasodilation, sleep fragmentation reduction | 3g powder | 30-60 min before bed | Core temperature reduction via vasodilation, sleep fragmentation reduction |
Melatonin SR 1-3mg (AOR or CanPrev) Sustained-release melatonin Timing: 30-60 min before bed Sleep onset, sleep quality, circadian rhythm - SR for maintenance | 1-3mg | 30-60 min before bed | Sleep onset, sleep quality, circadian rhythm - SR for maintenance |
Here's something most people don't know: falling asleep requires your core body temperature to drop. It's a physiological trigger. Glycine at 3g induces peripheral vasodilation - widening blood vessels in your hands and feet - which releases heat from your core, mimicking the natural temperature drop that signals sleep onset. Polysomnography (the gold standard of sleep measurement) confirmed significantly fewer awakenings in the glycine group.
Magnesium L-threonate crosses the blood-brain barrier and directly supports deep sleep and REM architecture. Melatonin sustained-release maintains levels throughout the night for sleep maintenance. Together, this is a protocol built on the physics of sleep, not just a hope that something will make you drowsy.
Educational summary. Not a substitute for personalised medical advice.
RCT (80 adults, 21 days, Oura ring measures): magnesium L-threonate group maintained sleep quality while placebo declined; significant improvements in deep sleep score, REM sleep score, light sleep time, HRV, readiness score, and activity balance. Also improved mood, energy, and alertness the following day. It is the only magnesium form shown to cross the blood-brain barrier in meaningful concentrations.
Glycine lowers core body temperature by dilating peripheral blood vessels - replicating the physiological drop that normally triggers sleep onset. RCT of collagen peptides, which are glycine-rich, confirmed significantly fewer sleep awakenings and improved next-morning cognitive performance. Exceptionally well-tolerated with no known adverse effects at this dose.
Meta-analysis of 23 RCTs: melatonin supplementation significantly improved sleep quality scores. Sustained-release formulation maintains melatonin levels throughout the night rather than producing a single early spike. Use the lowest effective dose (1mg is often sufficient) - higher doses don't proportionally improve sleep and may increase next-day grogginess.
Melatonin SR may cause next-morning drowsiness, particularly at higher doses. Avoid driving or operating heavy machinery until you understand your individual response. Share with your prescribing physician if you are on blood-thinning medications, anticonvulsants, or immunosuppressant medications.
Magnesium L-Threonate may have additive sedative effects when combined with benzodiazepines, muscle relaxants, or alcohol - do not combine. Very well tolerated at the doses used in this formula.
Important distinction: Precision Sleep is designed for physiological sleep difficulty without a significant stress component. If your sleep difficulty is primarily driven by anxiety, racing thoughts, or elevated cortisol, Precision Stress Management may be the more appropriate starting point. Not sure which fits? Book a coaching session.
Important. These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. The evidence summaries provided are for educational purposes only and represent published research findings - they are not claims about this specific product's ability to treat any condition. If you are pregnant, nursing, taking medication, or have a health condition, please consult your healthcare provider before use.
Shipped within 24 hours - 30-day satisfaction guarantee - Free shipping over $100