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Cools the body down into sleep.

Your body needs to lower its core temperature to enter deep sleep. Sleep Repair supports that drop, giving your body the signal that sleep has started.

Rebuilds muscle and tissue.

Glycine makes up roughly a third of collagen, your body's primary repair protein. More glycine means that overnight rebuilding gets done more completely, every night.

Quiets the alert side.

Glycine eases the signals that keep you alert while leaving your sleep architecture completely intact. Natural sleep, not induced sleep.

Starts the next day clean.

When deep sleep completes properly, the brain's own waste-clearance system gets to finish its job. Sharper cognition, less fatigue and more clarity as a consequence of a better night.

the evidence

Clinically Studied Ingredients
SCIENCE, EXPLAINED.

FROM BASICS TO BIOLOGY TO RESEARCH

THE BASICS
Your mind slows down on its own and sleep arrives easily.
The night actually repairs you and you wake up feeling refreshed.
There is less fatigue behind your eyes the next morning.
More mental clarity through the day.

It cools you down.

Your body needs to lower its core temperature to enter deep sleep. Glycine supports the widening of blood vessels near the skin, releasing heat and triggering that drop, giving your body the signal that sleep has started.

It quiets the alert side.

Glycine works through its own inhibitory pathway to ease down the signals that keep you alert without altering the natural structure of your sleep stages.

It gets you into deep sleep faster.

The most restorative sleep happens in slow-wave stages. Glycine shortens the time it takes to get there so that more of your night is spent in quality sleep.

It repairs you while you sleep.

Glycine makes up roughly a third of collagen, your body's primary repair protein. More glycine means that overnight rebuilding gets done more completely.

It carries into the next day.

When deep sleep completes properly, the brain clears better. This means sharper cognition, less fatigue and more clarity as a consequence of a better night.

Temperature regulation and sleep onset.

Glycine acts on NMDA receptors in the suprachiasmatic nucleus (the brain's internal clock) triggering peripheral vasodilation. Core body temperature decreases, initiating sleep onset through the body's own thermoregulatory pathway.

Inhibitory tone without architectural disruption.

Glycine crosses the blood-brain barrier passively and binds to glycine receptors, increasing inhibitory tone without altering sleep architecture or the natural ratio of sleep stages. This is the key distinction from sedatives, which suppress the system rather than support it.

Slow-wave sleep latency.

Glycine shortens slow-wave sleep latency by acting on orexin neurons, the brain's wakefulness-promoting cells, reducing their activity and allowing faster entry into deep, restorative sleep.

Collagen synthesis and overnight repair.

Glycine comprises approximately 33% of collagen's amino acid composition. Supplementing at 3g restores availability to optimal levels during overnight repair cycles.

Next-day neurobehavioural performance.

Improved deep sleep completion supports glymphatic clearance, the brain's overnight waste-flushing system. Studies show improvements in next-day cognitive performance and subjective alertness as a downstream consequence of better sleep quality.

WHICH ONE DO YOU NEED?

OR
Your mind is still running from the day and won't switch off
You fall asleep and stay asleep fine but wake up unrested
You have elevated cortisol/stress and can feel it
You just want longer, deeper, better sleep

INGREDIENT GLOSSARY

Tap on the ingredient to see full information

Glycine

A simple amino acid, abundant in the human body.

DIETARY SOURCES:
Collagen rich sources of food such as meat, and from legumes, soybeans and seeds.

WHAT IT DOES
Lowers core body temperature slightly, which is the exact physiological signal your brain uses to initiate deep sleep.

WHAT IT FEELS LIKE
You stop fighting sleep and the shift from awake to asleep feels less like a drop and more like a slide.

Questions worth asking


It usually is, until it isn't. Glycine is used across dozens of processes in the body simultaneously: collagen synthesis, detoxification, neurotransmitter production and sleep regulation. Under stress, with poor sleep or with high physical demand, it gets stretched thin. Sleep Repair tops it up so there's enough to go around.


Not necessarily. Total sleep time and sleep quality are different things. You can spend 8 hours in bed and still wake up exhausted if you're not spending enough of that time in deep, slow-wave sleep. If you wake up tired, feel foggy in the morning or don’t feel restored, sleep quality is likely the issue.

That depends on what's driving the depletion. Some people use Sleep Repair through a particularly demanding period involving high stress, intense training and disrupted routine. They then find they don't need it once things settle. Others find consistent nightly use is what keeps their sleep quality where it should be. There's no dependency, no withdrawal and no adaptation. You can stop at any time without any side effects.


Yes. Glycine is a naturally occurring amino acid with no known interactions with common supplements. However, if you're on prescription medication, always check with your doctor.

Nothing dramatic. No withdrawal, rebound insomnia or adaptation effect. Glycine doesn't create reliance, it just supports a function the body already performs.

The signs are subtle but consistent: you fall asleep more easily, you wake up less through the night, and you wake up feeling like the night actually restored you. Morning grogginess reduces and mental clarity improves.

For when you need better, deeper rest